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The Digestive System
OVERVIEW - part one
| Question | Answer |
|---|---|
| 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
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