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2012-04-26 17:27:39
Human Systems Physiology Exam

Human systems Physiology Exam 3
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  1. Mucin
    • in saliva
    • lubrication
  2. amylase
    • in saliva and gut
    • digestion of carbohydrates
  3. muramidase
    • in saliva
    • attack bacterial cell walls
  4. lactoferrin
    • in saliva,
    • binds Fe3+ to prevent formation of biofilms
  5. Stomach
    storage and regulated transport of food into the small intestine
  6. Small intestine
    • main sight of digestion and absorption
    • regulated delivery to the large intestine
  7. large intesetine
    absorption of water, ions, vatmins from bacteria, feces
  8. acinus
    specialized epithelial cells that secrete water, ions, and products specific to the gland
  9. salivary glands
    • secrete mucin
    • amylase
    • lysozyme
    • lactoferrin
  10. pancreas
    • makes:
    • secretin
    • amylases
    • proteases
    • nucleases
    • lipases
  11. liver
    • bile production and secretion
    • carbohydrates
    • lipids--synthesis of cholesterol and triglycerides
    • proteins --synthesis of albumin, most coagulation factors, globulins, and amino acids
    • hormones
    • ammonia to urea detoxification
  12. gallbladder
    stores all the stuff from the liver and helps regulate their secretion into the duodenum
  13. glucose and galactose to cells?
    secondary active transport
  14. fructose into cells
    facilitated diffusion
  15. proteins into cells?
    secondary active transport
  16. fats
    • diffuse into enterocyte
    • into EF
    • reassembled into triglycerides
    • move to Golgi
    • repacked with other lipids into chylomicrons
    • exocytosed into interstititial fluid
    • into lacteals of lymphatic system
    • blood
  17. where is gastrin produced?
    what stimulates its release?
    what does it do?
    • in the G-cells
    • nutrients, stretching, and parasympathetic input
    • stimulates gastric secretion and motility
  18. Secretin:
    Where produced?
    what stimulates?
    what does it do?
    • in s-cells in mucosa
    • acid in duodenum
    • inhibits gastric secretion and motlity and stimulates secretion by liver
  19. CCK
    where produced
    what stimulates
    its job
    • small intestine
    • fats or proteins in duodenum
    • inhibits gastric secretion and motility, stimulates pancreatic secretions, stimulates emptying of gallbladder into duodenum.
  20. Path of blood through kidney
    • artery
    • afferent arteriole
    • glomerulus
    • efferent arteriole
    • peritubular capillaries
    • vasa recta
    • vein
  21. path of filtrate through kidneys
    • blood
    • bowman's capsule
    • proximal tubule
    • descending limb of LH
    • ascending limb of LH
    • distal tubule
    • collecting tubule
    • collecting duct
  22. diuresis
    when too much water is present, excrete dilute urine
  23. antidiuresis
    when too little water in plasma, excrete concentrated urine
  24. what is permeability of collecting duct changed by
    • change in # of aquaporins
    • changed by ADH (vasopressin)
    • low ADH = less aquaporins, excrete more water/dilute urine
  25. 4 types of diabetes insipidous
    • neurogenic--defect in pituitary or hypothalamus, little production of ADH
    • nephrogenic--defect in kidney's response to ADH
    • dispogenic--damage to hypothalamic thirst center
    • Gestational--overproduction of vasopressin (ADH) by mom