Digestion 2

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Author:
ambirc
ID:
136148
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Digestion 2
Updated:
2012-02-18 13:28:27
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Digestion
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A&P Notes from class
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  1. What is digestion
    The mechanical and chemical beakdown of food for purpose of nurtirent absorption
  2. What is the Alimentary Canal
    • Maintain environment where digestion occurs
    • Canal is surrounded by the body tissue
  3. What are the accessory ograns associated with the alimentary canal and contribute to digestion
    • Pancrease
    • Liver
    • Gall Bladder
    • Salivary Glands
  4. 4 Tissue structures of the Digestive tract
    • Serosa -Outler Layer
    • Muscular - move stuff
    • Submucosa - between the muscular and mucose
    • Mucose layer in contact with what we are ingesting; protection
  5. What are the two basic motor functions
    • Mixing - Smooth muscle contractions
    • Propelling - peristalsis
  6. Which Slows digestive system down Parasympathic or Symapthietic?
    Symapthietic
  7. What controls the strength, rate and velocitiy of muscle contractions
    A. Parsympathietic
    B. Sympathietic
    A. Parsympathietic
  8. What is the main purpose of the tongue
    Mixing muscles and taste sensors
  9. What is purpose of the tonsidls
    Lymph tissue defenses sites
  10. What is the purpose of Teeth
    Cut, Tear, and grind
  11. What are the 3 gland of salivary glands
    • Submandibular Gland
    • Sublingual
    • Chorded
  12. Purpose of Esophagus
    Food bolus transport
  13. What are the 4 distinct Regions of the Stomach
    • Cardiac - junction with the stomach and the esphagus
    • Fundic - flexible - area that balloon when you eat
    • Body - main part
    • Pyloric - funnel like section to exit stomach
  14. What are the secretions that collectively make up the stomach jucies
    • Mucos Cell (goblet) - mucous
    • Chief Cell (peptic) digestive enzyme - secret pepsinogen
    • Parietal Cell (oyyntic) - HCL
  15. What are the two different hormones that effect gastric secretion
    • Gastrin - increase
    • Somatiostain - decrease
  16. What is gastric secretion regulation
    Continuous production rate affected neutrally and hormonally
  17. What gastic absorbtion occurs in the stomac
    • Protease Secretion; No nutrient absorption
    • Small quanities of water and salts
    • Lipid soluble drugs
    • Alchohol
  18. What are the main stomach actions
    • Mixed food particles and gastric juices
    • Chyme moved into small intestine
    • Vomit
    • Nausea
  19. What aids inthe absorbtion of B12
    Gastric juice - intrinsic factor
  20. What type of gland is the Pancrease
    Exocrine and endocrine
  21. What are 5 enzymes in teh Pancrease
    • Amylase
    • Lipase
    • 3 proteolytic enzymes - typinsogen, chymotrypsinogen, carboxypeptides

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