Torso model MP1300

abdomenfor teaching

This detailed 3D printed model presents the male posterior abdominal wall from the diaphragm down to the pelvic brim, including the pelvis and proximal thigh. A focused pelvic and thigh version is also available (MP1770). Muscular Anatomy & Diaphragm The parietal peritoneum is removed to expose the key muscles of the posterior abdominal wall: psoas major, quadratus lumborum, transversus abdominis, and iliacus below the iliac crest. The diaphragm shows distinct muscular fibers originating from the thoracic cage and lumbar vertebrae (right crus L1–L3, left crus L1–L2), connected by the median arcuate ligament. Major diaphragmatic openings for the esophagus, aorta, and inferior vena cava are visible, although the aorta is removed. Nerves Somatic nerves are clearly identifiable, including the subcostal, iliohypogastric, and ilioinguinal nerves (which arise together in this specimen), the lateral cutaneous nerve of the thigh, the genitofemoral nerve (on psoas), and the femoral nerve situated between psoas and iliacus. The sympathetic trunks run alongside the lumbar vertebrae. Vessels & Kidneys The aorta and inferior vena cava are transected at L3, with the aortic bifurcation positioned slightly higher than usual. The renal arteries and veins are preserved, though their full origin is partly obscured by the absence of the great vessels. Both kidneys are dissected free from surrounding fat, showing the typical lower position of the right kidney. The ureters are visible descending from the renal hilum, passing medial to the psoas before crossing the pelvic brim into the true pelvis.