production of bile Flashcards

1
Q

bilirubin is blood

A
  • garbage
  • no digestive function
  • is not necessary for life
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2
Q

cholesterol source of

A
  • steroids
  • cholic acid
  • chenodeoxycholic acid
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3
Q

bile acid vs bile salts

A

bile acid is lipid soluble

bile salt is water soluble

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4
Q

human body is mostly water for fats to enter, fats are covered with bile and its coverings are

A
  • lipid soluble bile acid then conjugated (cover) with sugar
    glycine and taurine (bile salts)
  • so inside is lipid soluble and outside is water soluble
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5
Q

bile salts goes into the

A
  • gallbladder
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6
Q

gallbladder concentrates and absorbs

A
  • bile
  • absorbs Na, K, Cl, H2O, HCO3 EXCEPTS BILE SALTS
  • ALL absorbable substance wil decrease in concentration overtime except bile salts
  • will increase concentration answer bile salts except are all absorbable substance
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7
Q

CCK

A
  • relaxes the sphincter

- contracts the gallbladder

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8
Q

bile

A
  • is indispensable for fat absorption

- from bile salts from cholesterol covered with sugar glycine and taurine for micelles to eat and absorb fats

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9
Q

bile salts are recycled in the

A
  • terminal ileum
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10
Q

resection of terminal ileum

A
  • no bile salts reabsorption (a conjugated form of bile acid)
  • Vit. A, D, E, K and fat malabsorption
  • low calcium due to bile salt malabsorption causing osteoporosis
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11
Q

case:

after resection of bowel patient suddenly develops osteoporosis what part of the bowel is resected

A
  • terminal ileum (where bile salts are absorb and produce calcium)
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12
Q

bilirubin

A
  • gives golden yellow color to bile
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13
Q

stercobilin

A
  • gives brown color to the stool
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14
Q

40% content of bile are

A
  • phospholipids (lecithin)
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15
Q

most prominent feature of small intestine

A
  • are villi
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16
Q

water and electrolyte reabsorption greatest at the

A
  • villus tip
17
Q

water and electrolyte secretion greatest at the bottom in the

A
  • crypts of Lieberkuhn
18
Q

only sugar that are absorbed are the

A
  • MONOSACCHARIDES alone
19
Q

greatest site of absorption of water and electrolytes

A
  • COLON
20
Q

in the kidney single most independent energy step

uses more energy than anyone else in the kidney

A
  • sodium reabsorption drives the reabsorption of anything else