ANAT 261 Lecture Notes - Lecture 14: Hair Follicle, Epithelium, Serous Membrane

• School: McGill University
• Department: Anatomy & Cell Biology
• Course: ANAT 261
• Professor: Craig Mandato

Document Summary

Lecture 14- digestive system (esophagus and stomach: digestive system -oral cavity to exit point. Epithelium - 1st layer, all epithelial cell rests on bm. Muscularis mucosae- well developed in the esophagus, allows to swallow and push food down. Submucosa- loose (more cells, alot of fibrocytes (what does that mean?) ) or dense (more fibers) ct, underneath the mucosa, from the esophagus to rectum. Muscalaris- 2 sublayers (3 in the stomach longitudinal, circular, oblique) Muscles around the esophagus, in your small intestine, inside your stomach, through large intestine, and to rectum. You have to determine the plane of section for esophagus, based on what the smooth muscle looks like. If smooth muscle is longitudinal, based on nucleus appearance Serosa (or adventitia)- outside the muscularis, esophagus is aventitia, when you get to stomach and small intestine its serosa, it gets continuous with the vercinal peritinum.