Please enable JavaScript.

Coggle requires JavaScript to display documents.

Digestive system (A. Mouth (B. Pharynx (C. Esophagus (D. Stomach (E. Small…

- - - - Connect pharynx to stomach
      - D. Stomach
        
        Function: Store, secrete substances, mixing, move chyme
        
        Parts of stomach
        
        Esophageal- tough lining
        
        Cardiac- mucus secretes
        
        Fundic- HCl secreted
        
        Pyloric- Before leaves stomach
        
        Flow of gastric juices
        
        Gastic phase- Nerve and hormonal, food is in stomach, longest time
        
        Intestinal phase- Hormonal response, food is ready to leave
        
        Cephalic phase- nerve impulses, incoming food
        
        Emptying stomach- has to be acidic and duodenum has to be receptive
        
        E. Small Intestines
        
        Structure: Tube and muscular, villi increase surface area
        
        Function: Chemical degradation and absorption
        
        Enzymes: Protease, amylase, carbohydrase, lipase
        
        Absorbed
        
        Starch- Glucose
        
        Sugars- Glucose
        
        Protein- Amino acid
        
        Lipids- Fatty acid+ glycerol
        
        Vitamins+Water+ minerals in solution
        
        Absorption: Movement of GI tract to blood stream the diffufusion, osmosis and active transport
        
        Large intestines
        
        Stores residues from digestive process, lubricate residues to exit through anus
        
        Cecum, colon, rectum, anus
        
        Also absorbs water
        
        Protein is broken down in stomach
      - Muscular structure
- - - - Outpocket called crop
      - Crop
        
        Moisten and lubricate
        
        Storage, no chemical degradation
        
        Proventriculus
        
        True Stomach, end of esophagus
        
        Secrete gastric juices and HCL
        
        Ventriculus
        
        Small intestine
        
        Duodenal loop
        
        Contents are acidic until pancreatic and bile ducts at posterior end, Gastirc digestion
        
        Pancreas gland
        
        End of duodenal loop
        
        Large Intestines
        
        Two ceca
        
        Colon, absorbs water
        
        Cloaca and vent
        
        1 more item...
        
        Absorption occurs here, including water
        
        Grinds food, mixes with gastric juices from before and digestion begins
        
        Contains grit: tiny stones
- - - - Reticulum: Honeycomb, traps large substances to regurgitate
      - Omasum: Absorbs water and reduces particle size
      - Rumen: Largest part, muscular, covered with papillae, absorbs VFA
        
        Proteins are broken down into ammonia and organic acids
        
        Sugar, starch, and cellulose turns into glucose then into VFA
      - Abomasum: True stomach, HCl and other gastric fluids
      - Larges part in cow and pig
      - Immature ruminants have larger omasum and abomasum
      - Reticular groove brings things to omasum and abomasum
      - No enzymes in reticulorumen, only microbes like protozoa and bacteria
        
        Symbiotic relationship
        
        The microbes saturate the food