This concept covers the gross anatomy of the anterolateral and posterior abdominal wall, within human anatomy/anatomical sciences. It defines the surface landmarks (linea alba, linea semilunaris, tendinous intersections), the clinical division of the abdomen into quadrants and a nine-region pattern bounded by defined vertical and horizontal planes, the skeletal and muscular components (posterior and anterolateral flat/vertical muscles), the layered structure of the wall from skin to parietal peritoneum, and the dermatomal map (T5/T10/L1) relating spinal nerve levels to surface landmarks. It relates to embryology (foregut/midgut/hindgut derivation and referred pain patterns) and to regional anatomy of the inguinal canal as a passage for the spermatic cord or round ligament.
This concept covers the gross anatomy of the anterolateral and posterior abdominal wall, within human anatomy/anatomical sciences. It defines the surface landmarks (linea alba, linea semilunaris, ten…