PHYL 2044 Lecture Notes - Lecture 1: Peristalsis, Geographic Information System, Jejunum
10 Mar 2019
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Phyl2044: gut phyl 1 general principles of gi function. Adding various substances that help in digestion, absorption and motility the movements that happen in the gi tract: digestion: Nutrients (once the food particles are digested) move from the lumen of gi tract into the blood circulation: motility: Movement of the ingested food through the gi tract involves propagating and mixing movements: excretion: There are many accessory organs that produce secretions that go into the lumen of the gi tract secretions include: the acid in the stomach, enzymes that come from various places (pancreas), salivary glands, etc. The hollow tube starts from the mouth (teeth, tongue, salivary glands). The stomach starts after the second sphincter in the gi system the les (lower esophageal sphincter). Fundus; and most of the stomach is called the body; the lower part is the antrum, which ends up in the pylorus (sphincter). The pylorus sphincter separates the stomach from the small intestine.
