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15 Cards in this Set
- Front
- Back
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three layers of muscle in stomach
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Oblique Layer
Circular Layer Longitudinal Layer |
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Gastrin
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secreted by the G Cell
releases more gastric juice constricts esophageal sphincter relaxes pyloric sphincter |
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Accessory Organs
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teeth
tounge salivary glands liver pancreas gall bladder |
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Alimentary Canal layers
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Mucosa
Submucosa Muscularis Serosa |
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Absorbtion by stomach
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water (esp if cold)
some electrolytes some drugs (ie- aspirin) alcohol |
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Pancreatic Juice
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Water (1.5 quarts daily)
sodium bicarbonate digestive enzymes |
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Digestive Enzymes
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pancreatic amylase(break down carbs)
pancreatic lipase (break down lipids) nucleases (digest nucleic acid) proteases (digest proteins) |
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Pancreatic Seceretions
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CCK --> increase digestive enzyme
Secretin --> increase sodium bicarbonate |
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Bile
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Water
cholesterol bile salts (allow fat to mix with water) bile pigments (bilirubin) |
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Liver functions- Carbohydrate metabolism
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gluconeogenesis
glycogenesis glycogenolysis |
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Liver Functions- Protein Metabolism
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Removes NH2 from amino acids
converts toxic amonia (NH3) into urea synthesizes plasma proteins for clotting and immune system converts one amino acid into another (can make 12 out of the 20) |
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Liver functions - Lipid Metabolism
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synthesizes cholesterol
synthesizes lipoproteins- HDL, LDL stores some fat breaks down fatty acid |
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Liver Functions- Other
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detoxifies blood by removing drugs and hormones
removes waste products stores iron and copper stores fat soluble vitamins phagocytizes worn out blood cells and bacteria |
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Small intestine functions
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Absorbs 90% of nutrients
completes digestion of carbohydrates, proteins & lipids begins & completes digestion of nucleic acids produces secretin and CCK |
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Chylomicrons
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Chylomicrons are large lipoprotein particles that transport dietary lipids from the intestines to other locations in the body.
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