HSCI 100 Lecture Notes - Mucus, Soft Palate, Bes

• School: Simon Fraser University
• Department: Health Sciences
• Course: HSCI 100
• Professor: Nienkevan Houten

Document Summary

It"s a long tube hollow tube that is that makes up the digestive system: begins at the mouth and continues to the esophagus, stomach, small intestine, and large intestine, have 4 basic layers, mucosa. > innermost layer that create mucus that protect the lining and also produce digestive enzymes. > mucus help lubricate the lumen, allowing food to slide through easily. > in some region, cells in mucosa help secrete digestive enzymes: submucosa. > 2nd layer of the loose connective tissue that contains blood vessels, lymphatic blood vessels and nerves: muscularis. > 3rd layer made of 2 layers of smooth muscle that moves good along the gi tract. > mixing ingested materials with digestive secretion: serosa. > outer lining that is part of the peritoneum that covers abdominal parts. > thin layer of epithelial tissue supported by connective tissue, wraps around gi. > intake of food via the mouth: digestion.