BIOL 2510 Lecture Notes - Lecture 23: Sphincter Of Oddi, Lamina Propria, Pylorus
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They will enter individual cells by active transport: a) inside to outside the layers of the alimentary canal are- mucous membrane, submu- cosa, muscular layer, serous layer. b) mucous membrane: moist epithelium cell that se- Cretes mucus, digestive enzymes, and hormones, absorbs the end products of diges- tion into the blood, and protect against infectious disease. Has three layers- lining ep- ithelium, lamina propria, muscularius mucosae. c) submucosa: areolar connective tissue containing rich blood supply and lymphatic vessels, lymphoid follicles, and nerve fibers which supply the surrounding gi tract wall. Mesocolon: a mesentery joining the colon to the dorsal abdominal wall. Greater omentum: is a large apron-like fold of visceral peritoneum that hangs down from the stomach: the six functions of the digestive system: 1. Propulsion: moves food through the alimentary canal via peristalsis and swallowing, 3. Me- chanical breakdown: increases the sa of ingested food preparing it for digestive enzymes, includes chewing and segmentation.
