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MOD B - WEEK 4 LECT.

DIGESTIVE SYSTEM

QuestionAnswer
The digestive tract AKA: The gastrointestinal tract
The 4 functions of the digestive system: -ingestion -digestion -absorption -elimination
Oral: pertaining to the mouth
Chewing: Mastication
The 3 salivary glands: -parotid -submandibular -sublingual
Pharynx: throat
Peristalsis: the involuntary, progresive, rhythmic contraction of muscles in the wall of the esophagus propelling bolus down toward the stomach.
The 3 main parts of the stomach: -the fundus -the body -the antrum
Regurgitating: flowing backward from normal direction
Rugae: folds in the mucous membrane lining the stomach
Rugae contain digestive glands that produce: the enzyme pepsin & hydrochloric acid
Food leaves the stomach... in 1-4 hours
The small intestine has 3 main parts: -duodenum, only about 1 foot long -jejunum -ileum
Villi: Millions of tiny microscopic projections that line the walls of the small intestine
3 main parts of the large intestine: -the cecum -the colon -the rectum
The appendix: hangs from the cecum (useless)
Defecation: the expulsion or passage of feces from the body through the anus
Gallbladder: a pear-shaped, sac under the liver
Pancreas: a dual organ, working both in the digestive & endocrine system
Anorexia: lack of appetite
Borborygmus: rumbling or gurgling noise produced by movement of gas, fluid or both in the gastrointestinal tract.
Peptic ulcer: open sore in the lining of the stomach or duodenum.
Irritable bowel syndrome (IBS): (IBS) group of gastrointestinal symptoms associated w/ stress & tension.
Created by: ruthalcala
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