Posterior thoracic, abdominal and pelvic wall. Cadaver divided in coronal section through the thorax, abdomen and pelvis, all viscera removed to show ribs, intercostal muscles, diaphragm, psoas muscles, pelvic floor. Muscles of the neck, shoulder, groin also shown, with clavicle, head of the humerus also shown. Penis divided in transverse section, scrotum shown intact. Anterior view.