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Gastrointestinal System

GI Tract moves and digests food
Parts of the GI tract Mouth Pharynx Esophagus Stomach Small Intestines Large Intestines Pancreas Liver Gallbladder Salivary Glands Rectum Anus
Teeth tear, crush, and masticate food into digestible pieces
Tongue moves masticated food to the back of the throat
Papillae elevations on the tongue
Gloss/o Lingu/o tongue
Or/o Stoma mouth
Tonsil/o tonsils
Gingiv/o gums
Sali/o saliva
What is the normal physiology of the mouth? smooth surfaces, light pink, 2 second CRT, teeth are shade of white with no tartar
What is abnormal physiology of the mouth? gingivitis, plaque, tartar, epuli, tumors, stomatitis, ulcers
Pharynx (throat) the caudal oral cavity that joins the respiratory and GI system
Esophagus tube attached from the mouth to the stomach that carries masticated food to the stomach
Strictures places along the esophagus where the diameter is smaller than normal
Megaesophagus pockets in the esophagus where its larger than normal
Stomach released enzymes and contracts to chemically and mechanically digest food
What 4 enzymes are released by the stomach? HCL, Pepsin, Intrinsic Factor, Gastrin
HCL stomach acid (hydrochloric acid)
Pepsin breaks down protein
Intrinsic Factor helps absorb B12 vitamin
Gastrin stimulates stomach to release HCL
3 portions of the stomach fundus, body, pylorus
Pyloris sphincter that keeps food in and lets food out of the stomach
Duodenum first portion of the small intestine
Jejunum second portion of the small intestine
Ileum end portion of the small intestine
what are the 4 parts of the large intestine? cecum, colon, rectum, anus
Cecum serves as a fermentation chamber in large animals
Colon where most of the reabsorbtion of water happens, secrete bicarbonate and potassium, and contains pre/pro biotic bacteria
Peritoneum membrane lining that covers the abdominal and pelvic cavity and some of the organs in that area.
Mesentary keeps intestinal tract from twisting, supplys blood, lymps and nerves to the intestinal tract
Omentum sheet of fat that gives a protective layer for the abdominal cavity and organs`
Liver cleanses blood regulates fuel manufactures proteins regulates hormones regulates cholesteral regulates vitamines and minerals produces bile
Liver Failure inability for the body to eliminate toxins. 80% must die for liver failure to occure
Jaundice staining of blood and tissues yellow
Ascites build up of fluid in the abdomin
Gallbladder holding area for bile
Pancreas produces hormones (insulin, glucagon) and delivers digestive enzymes to the small intestine (trypsin, lipase, and amylase)
Trypsin helps protein digestion
Lipase helps fat digestion
Amylase helps starch digestion
Pancreatitis inflammation of the pancreas
4 clinical sins of pancreatitis vomiting, diarrhea, dehydration, fever
what are the 4 salivary glands? mandibular, zygomatic, parotid, and sublingual
what digestive enzyme are animals lacking in their saliva that humans have? lipase
Saliva serves to moisten food, aids in digestion and cleanses mouth
how do cats and dogs sweat? through panting and their pads
Paristalsis series of wavelike contractions that move ingesta
Segmentation involes side to side mixing of ingesta
Saliva is made of what? water, mucus, and enzymes
Digestion breaking down foods into nutrients that the body can use
Absorption the process of taking digested nutrients into the circulatory system
Created by: em.boudreau



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