Gastrointestinal Physiology

Chapter 7 Gastrointestinal Physiology



I. Structure and Function of the Gastrointestinal Tract
A. Functional anatomy
1. Overview







2. Layers of the gut wall
Throughout most of the GI tract, the gut wall is composed of four layers; from inside to outside, these are the mucosa, submucosa, muscularis propria, and serosa (Fig. 7-2).
a. Mucosa











3. Neural regulation of the gastrointestinal tract

Extrinsic regulation: autonomic nervous system (Fig. 7-4)



B. Gastrointestinal functions
1. Motility
Electrical basis for intestinal motility: slow waves





Types of contractions





II. Salivation and Mastication
A. Salivation



Jul 4, 2016 | Posted by in PHYSIOLOGY | Comments Off on Gastrointestinal Physiology
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