280555008: Structure of lumbar triangle (body structure)

• SNOMED CT Concept\Body structure (body structure)\Anatomical or acquired body structure (body structure)\Anatomical structure\...
• \Body wall structure\This structure surrounds the abdominopelvic cavity and has two regional parts: the wall of abdominal proper segment of trunk and the pelvic wall, but excludes the pelvic floor and the thoracic diaphragm.\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Structure of half of body lateral to midsagittal plane (body structure)\Structure of half of trunk lateral to midsagittal plane (body structure)\Lumbar triangle
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This structure surrounds the abdominopelvic cavity and has two regional parts: the wall of abdominal proper segment of trunk and the pelvic wall, but excludes the pelvic floor and the thoracic diaphragm.\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Chest and/or abdomen and/or pelvis structure (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\Lower back structure\Lumbosacral region structure\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Structure of back of trunk and/or neck (body structure)\Structure of back of trunk (body structure)\Regional back structure\Lower back structure\Lumbosacral region structure\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Structure of back of trunk and/or neck (body structure)\Structure of back of trunk (body structure)\Regional back structure\Structure of thoracolumbar region of back\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Lower body structure\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This structure surrounds the abdominopelvic cavity and has two regional parts: the wall of abdominal proper segment of trunk and the pelvic wall, but excludes the pelvic floor and the thoracic diaphragm.\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Lower body structure\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Lower body structure\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Lower body structure\Lower body part structure\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\Lower back structure\Lumbosacral region structure\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This structure surrounds the abdominopelvic cavity and has two regional parts: the wall of abdominal proper segment of trunk and the pelvic wall, but excludes the pelvic floor and the thoracic diaphragm.\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\This cross-sectional segment is bounded superiorly by a virtual horizontal plane at the level of the junction between T8 and T9 (and thus also includes part of the thoracic volume below this level); and inferiorly it extends to the perineum, including the volume of the true and false pelvic cavities and part but not necessarily the entire external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between the superior (upper) and inferior (lower) boundaries including the skin and subcutaneous tissue. The segment relates to the cross-sectional or projectional volume as perceived by transmissive or emissive imaging.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\Structure of half of trunk lateral to midsagittal plane (body structure)\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\Structure of back of trunk (body structure)\Regional back structure\Lower back structure\Lumbosacral region structure\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\Structure of back of trunk (body structure)\Regional back structure\Structure of thoracolumbar region of back\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This structure surrounds the abdominopelvic cavity and has two regional parts: the wall of abdominal proper segment of trunk and the pelvic wall, but excludes the pelvic floor and the thoracic diaphragm.\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\This structure is comprised of the anterior and posterior abdominal wall.\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\This segment relates to the volume of the trunk that is bounded superiorly by and includes: the thoracic diaphragm and inferiorly by the superior pelvic aperture. It incorporates the abdominal proper cavity (including the volume of the false pelvis), contents and wall including the lumbar vertebral column and all the overlying muscles, skin and subcutaneous tissue. It consequently includes the intra-abdomen proper structure, the anterior abdominal wall and the posterior lumbar region. Note, the entire bony pelvis although forming part of the boundary is excluded from the abdomen proper segment of trunk (but is included as part of the pelvic segment of trunk).\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle
• \Body region structure\Body part structure\Trunk structure (body structure)\Structure of subregion of trunk (body structure)\This segment relates to the volume of the trunk that is bounded by and includes: superiorly thoracic diaphragm and inferiorly the perineum and external genitalia. The volume includes the entire transverse thickness of the body over the longitudinal extent between these upper (superior) and lower (inferior) boundaries including the overlying muscles, skin and subcutaneous tissue. The segment includes the abdominopelvic cavity, contents and wall including the posterior lumbar region, the volume of the true and false pelvic cavities including the bony pelvis and pelvic wall, the entire perineum and external genitalia including skin and subcutaneous tissue.\Lower back structure\Lumbosacral region structure\Structure of lumbar region of back\The posterior abdominal wall consists of the posterior abdominal wall musculature including the quadratus lumborum, psoas major and psoas minor and crus of lumbar part of diaphragm; the lumbar vertebrae bodies and transverse processes; the posterior part of abdominal peritoneum; and the abdominal wall including the transversus abdominus, internal and external oblique muscles posterior to the mid-axillary line. This definition is sometimes referred to as the posterior wall of abdomen proper as it excludes the more superficial layers of muscle and skin of the back: the middle layer of the thoracolumbar fascia (medially attached to the transverse process of the vertebra), and the lateral raphae constitute the posterior boundary of the posterior wall of abdomen and separate it from more caudal structures which are part of the lumbar region of back.\Lumbar triangle

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core

Descriptions:

Id	Description	Lang	Type	Status	Case?	Module
418188017	Lumbar triangle	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
4624970014	Structure of lumbar triangle (body structure)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
4624971013	Structure of lumbar triangle	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core

Expanded Value Set

Reference Sets

Lateralizable body structure reference set (foundation metadata concept)

Anatomy structure and entire association reference set (foundation metadata concept)

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