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Greater omentum
- Drapes like an apron over abdomen
- Helps to seal off infection by wrapping around inflamed tissue, stores fat
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Liver
- Largest internal organ
- 2 lobes in humans
- Removes toxins from blood
- Breaks down lipids
- Blood clotting
- Homeostasis
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Spleen
- More closely linked to the lymph system; not part of the digestive system
- Processes old red blood cells
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Gallbladder
- Connected to liver
- Stores bile, bile pigments and cholesterol
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Stomach
- J-shaped in humans; gastric folds rugae
- Excretes gastric juice (pepsi, initiates digest of protein
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Pancreas
- Closely associated with s.i.
- Pyloric sphincter leads to the s.i.
- Secretes pancreatic juice, contains enzymes to digest carbohydrates, fats
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Small Intestine
- Duodenum (start/short), jejunum (middle/bigger), ileum (end, lymph nodes)
- Many impt. metabolic activities Carb. -> maintain blood sugarLipids and proteinDestroys old RBCsStores many vitamins? A, D, B12, extra iron
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Large intestine
- Cecum (start of l. in.)
- Receives secretions from the pancreas and liver; MOST ABSORPTION, digest. system
- Little to no digest. function
- Lots of mucus
- Absorption of H2O and electrolytes
- Lots of bacteria
- Circle(?) of intestinal gas production
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Rectum
- End of the l.in.
- last section
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Anus
- distal end of the rectum
- contain sphincter muscles that control the release of waste
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Esophagus
- Collapsible tube 25 cm long
- Moves food from mouth 2 stomach via peristaltic waves
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Mesentery
Supports blood vessels and nerves that feed s.i.
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Alimentary canal
About 8m long
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Pathway of food
- Tongue
- Esophagus
- Stomach
- S.I.
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Compare the types and numbers of teeth present in a cat's upper and lower jaws with those of a human.
- Cats have 32 teeth - 6 incisors, 2 canines, 8 premolars, and 2 molars (upper jaw); lower jaw same with only 4 premolars
- Humans - 8 incisors, 4 canines, 8 premolars, 12 molars (32 teeth total)
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In what ways do that cat's teeth seem to be adapted to their special diet?
gnashing and tearing
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How do that papillae on the surface of the human tongue compare with those of the cat?
- Cat are much more pronounced and sharp
- Used for cleaning
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Compare the structure of the human liver with the cat.
- Human - 2 lobes
- Cat - 5 lobes
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What feature of the human cecum is lacking in the cat?
Appendix
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Left lateral lobe of liver
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Left medial lobe of liver
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Right medial lobe of liver
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Right lateral lobe of liver
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