Health Sciences 3300A/B Lecture Notes - Lecture 11: Inferior Vena Cava, Iliac Crest, Pelvic Inlet
5 Mar 2019
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Lecture 11 digestive system ii abdominal cavity & stomach. Inferior thoracic aperture (diaphragm: created by bottom surface of ribs and closed off by diaphragm, ribcage and abdominal muscles, anterolaterally, vertebral column posteriorly, pelvic inlet, end of abdominal cavity. Structure: sheet of skeletal muscle, slightly asymmetrical. Left side slightly lower due to heart: right side slightly higher due to liver, central tendon. In the center of diaphragm: allows structures to pass through without interference. Inferior vena cava: esophageal (t10, at the transition between muscular and tendinous fibers, esophagus, vagus nerve innervates stomach, aortic (t12, aorta rigid with high pressure, thoracic duct main pathway for lymphatic drainage. Largest cavity in the body must be divided into four quadrants. Longitudinal through body generating left and right halves. Ruq liver, gallbladder, duodenum, right kidney/adrenal, hepatic flexure, transverse colon. Luq liver, stomach, pancreas, left kidney/adrenal, splenic flexure, transverse colon. Rlq cecum, appendix, ileum, ascending colon, right ureter, right ovary.
