Anatomy and Physiology of the Digestive Tract
Gather and move the food around between the teeth and help in swallowing.
Cut grass, grind and shred food material
Hard and soft palate form the roof, salivary glands provide enzymes and saliva to start digestion and aid in swallowing
Smooth muscle tube connecting the mouth to the stomach, moves food by peristalsis, upper and lower esophageal sphincters are one way valves at each end.
Glandular and non-
First part of small intestine, pancreas adds enzymes, bile duct adds bile (no gall bladder in the horse), starts digestion and absorption.
Longest part of small intestine, enzymatic digestion, absorption of nutrients.
Last, short part of small intestine, leads to the cecum through the ileo-
Blind pouch, (appendix), digestion by microbial fermentation, absorption, two way peristalsis.
Right Ventral, Sternal flexure, Left Ventral, Pelvic flexure, Left Dorsal, Diaphragmatic Flexure, Right Dorsal to small colon, digestion by fermentation, absorption of nutrient and water.
Absorption of nutrients and water, dries out feces.
Forms fecal balls, further drying, holds feces prior to evacuation.
Sphincter to regulate defecation.