HBS204 Lecture Notes - Lecture 10: Esophagus, Enteric Nervous System, Depolarization
Document Summary
Hbs204 week 10 the gi system 2. Gi system - motility: one of the four major processes of the gi system and you can divide up motility into two areas. Propulsion of the contents through the gi tract - the movement of food y through the gi tract until it comes out at the other. The churning and mixing of the contents in the gi tract all parts of gi tract are constantly contracting, churning and squeezing contents to assist with digestion and the absorption of your food. Two types of contractions in the gi tract. It will actually eventually reach threshold and trigger an action potential and you will get contraction. If the stomach is stimulated which it can be stimulated by hormones. If the stomach is empty, no need to mix, no extra stimulus, reduced activity and no contraction.
