GI Anatomy.txt

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Author:
leoisbored
ID:
201612
Filename:
GI Anatomy.txt
Updated:
2013-02-18 20:30:35
Tags:
Anatomy GI
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Description:
Gi Anatomy
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    • author "me"
    • tags "Anatomy "
    • description "Anatomu"
    • fileName "GI Anatomy"
    • freezingBlueDBID -1.0
    • Peristalsiss?
    • Coordination, rhythmic, serial contraction of smooth muscle that forces food three the digestive tract.
  1. Mouth?
    Marks the entrance to the digestive tract.
  2. Papillae?
    • Contain the taste buds
    • Differentiate between bitter, sweet, sour and salty sensation
  3. The molars?
    Are the rear of the jaw teeth
  4. The three pairs of salivary glands?
    • Parotid gland
    • Submandibular gland
    • Sublingual gland
  5. What do salivary glands do
    • Secrete fluid called saliva.
    • Its about 99% water with enzymes and mucus
  6. How much saliva do we produce a day
    1-1.5 liters
  7. Which is the enzyme that initiates carbohydrate metabolism
    Amylase (ptyalin)
  8. What enzyme destroy bacteria and protects the mucous membrane from infection
    Lysozyme
  9. Esophagus
    Moves food from mouth to esophagus in 5-6 seconds
  10. What is the entrance of the stomach called?
    Cardiac sphincter
  11. The exit of the stomach is called?
    Pyloric sphincter
  12. What does pepsin do?
    Enzyme to break down protein
  13. What is mucin?
    It protects the stomach lining
  14. What is intrinsic factor?
    A substance secreted by the gastric mucosa to allow absorption of vitamin B12
  15. What is the small intestine?
    • A tube that is 20ft long and 1in diameter
    • 90% of digestion takes place
  16. What is the entrance of the small intestine?
    Pyloric sphincter
  17. Where does the small intestine end?
    Ileocecal valve
  18. Major functions of the large intestine?
    • Completion of absorption of water
    • Manufacture of certain vitamins
    • Formation of feces
    • Expulsion of feces
  19. What is the rectum?
    Is the last 8in of the intestine, where fecal material is expelled.
  20. What is the liver?
    • Is the largest glandular organ.
    • Produces bile
    • Holds 1.5L of blood
  21. What is bile?
    A yellow brown liquid that is necessary for the emulsification of fats.
  22. Wha lt is the gallbladder?
    Bile is stored in the gallbladder till its needed for fat digestion
  23. What is the pancreas?
    • It is involved in both endocrine and exocrine duties.
    • Produces 1-1.5L of pancreatic juice
  24. What enzymes does the pancreatic juice.
    • Protease (trypsin)
    • Lipase (steapsin)
    • Amylase (amylopsin)
  25. Why are pancreatic enzymes important
    • They digest components of chyme.
    • Protein
    • Fats
    • Carbs
  26. What is the papilla of Vater (major duodenal papilla)
    Connects to the common bile duct from the liver and gallbladder and empties through a small orifice.
  27. What regulates food intake
    The hypothalamus

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