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