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The Digestive System

OVERVIEW - part one

Why do we have the digestive system? Because it breaks down food into usable nutrients small enough to be diffused into the cells
Digestive tract hollow tube extending from the mouth to the anus
What are the structures included in the Digestive tract? mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, and anus
What are the accessory organs of digestion? Salivary glands, liver, gallbladder, and pancreas
What is another name for the digestive tract? alimentary canal, gi-tract, gastro intestinal
Peristalsis wave like movement through the digestive tract
Ingestion food enters the body
Digestion process by which food is broken down into smaller particles suitable for absorption
What does saliva break down (specifically)? Starch
Parotid glands lie below and anterior to the ears
Submandibular glands located on the floor of mouth
Sublingual glands located under the tongue
Bolus ball of food
Amylase enzyme in saliva that breaks down starch
Sphincters like shutting the door behind you, closes so food won't go back the way it came. Two: pharyngoesophageal sphincter (located at the top of the esophagus) and the Gastroesophageal shincter or lower esophageal sphincter (LES) thickens at base of esophagus
Created by: AutumnCCraig