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19 Cards in this Set

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Ingestion
Putting food into the mouth; eating
movement of the digestive system through...
Muscular action
Digestion
To break down larger substances to smaller substances for absorption
Mechanical Digestion
Teeth cut and grind food before swallowed + smooth muscle in the stomach churns food
Chemical Digestion
Breakdown of large carbs, lipid protien, and acid into smaller molecules
Absorption
Process where digestive materials move from G.I. tract into epithelial lining of dig. tract
Defecation
Elimination of waste
Major organs of Digestive system
Mouth
Pharynx
Esophagus
Stomach
Small intestine
Large intestine
Accessory structures of Digestive system
Teeth
Tongue
Salivary glands
Liver
Gallbladder
Pancreas
4 basic tunics (layers or coats)
Mucosa
Submucosa
Muscullaris
Serosa
Mucosa
mucous membrane, inner lining
Mocosa consists of...
Epithelium
Lamina propria
Muscularis mucosae
Epithelium of mucosa
Non keratinized stratified squamous; serves as a protective function: mouth pharynx, esophagus, anus
Lamina propria of mucosa
Always associated with mucous membrane; esp. of loose conn. tissue
Muscularis mucosae
Thin layer of smooth muscle fibers,causes small folds in stomach and small intestine, increseing surface area
Submucosa
Alveolar conn. tissue binds mucosa area to 3rd layer(muscularis)
Muscularis
Muscular layer in espohagus, contains skeletal muscle that produces voluntary swallowing
Inner layer of circular muscle and Outer layer of longitudinal muscle consists of...(muscularis)
smooth muscle
Serosa
Membrane (suferficial) suspends portion of G.I. tracts in abdominoevic cavity