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A&P 2 - Digestive System > Small Intestine and Associated Structures > Flashcards

Small Intestine and Associated Structures Flashcards

1
Q

tube that carries chyme away from stomach and deposits it in the large intestine

A

small intestine

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2
Q

three distinct parts of the SI

A

duodenum
jejunum
ileum

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3
Q

the SI is suspended from the body wall by what

A

mesentery

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4
Q

receives chyme through pyloric sphincter

A

duodenum

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5
Q

most chemical digestion and absorption occur in this section

A

jejunum

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6
Q

longest part of the SI

A

jejunum

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7
Q

empties into large intestine

A

ileum

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8
Q

ileum/LI intestine intersection in horse

A

cecum

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9
Q

ileum/LI intestine intersection dog and cat

A

colon

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10
Q

ileum/LI intestine intersection ruminant and pig

A

cecum and colon

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11
Q

where are prominent Peyer’s patches found

A

ileum

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12
Q

adaptions in the SI help increase what

A

surface area

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13
Q

the SI is long with many _____ and _____

A

loops and coils

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14
Q

folds in mucosal lining

A

plications

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15
Q

finger like projections in mucosa

A

villi

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16
Q

smaller projections off villi

A

microvilli

17
Q

what do the microvilli in the SI form

A

brush border

18
Q

found on villi and replace cells on villi as they are lost due to wear

A

intestinal crypts (crypts of Langerhans)

19
Q

lymphatic capillaries

A

lacteals

20
Q

lacteals carry absorbed lipids and fat-soluble substances to ____ ____ and into ____ _____

A

thoracic duct
vena cava

21
Q

where are lacteals found

A

on the villi

22
Q

blood capillaries in the villi collect some of the absorbed nutrients and transport them where

A

to the liver

23
Q

two hormones secreted by duodenal mucosa in the SI

A

cholecystokinin (CCK)
secretin

24
Q

CCK inhibits what

A

gastric emptying

25
Q

CCK causes increased secretion of ______ and _______ digestive enzymes

A

bicarbonate
pancreatic

26
Q

gall bladder contraction is triggered by what

A

CCK

27
Q

CCK stimulates the secretion of what, from the duodenal mucosa

A

enteropeptidase

28
Q

stimulus for CCK secretion are high _____ acid or _____ acid concentrations OR low pH of _______ entering duodenum

A

amino
fatty
chyme

29
Q

what decreases HCl production in the stomach

A

secretin

30
Q

secretin increases ________ and _______ _______ secretions

A

pancreatic
biliary bicarbonate

A&P 2 - Digestive System (20 decks)

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