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Physiology > GI Physiology > Flashcards

GI Physiology Flashcards

0
Q

The liver can regenerate up to how much?

A

70%

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1
Q

Layers of the GI tract

A

Mucosa; submucosa, muscularis, serosa

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2
Q

Where are ito cells found

A

Space of disse

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3
Q

Where are kuppfer cells found

A

Liver sinusoids

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4
Q

Cells in the liver that store vit A

A

Ito cells

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5
Q

APC cells in the liver

A

Kuppfer cells

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6
Q

Source of gastrin

A

G cells

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7
Q

Source of secretin

A

S cells

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8
Q

Source of cholecysokinin

A

I cells

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9
Q

Source of glucose dependent insulinotrophic pepide

A

K cells

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10
Q

Source of motilin

A

M cells

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11
Q

Increases gastric H secretion, stimulates growth of gastric mucosa

A

Gastrin

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12
Q

Increases pancreatic bicarbonate, increases biliary bicarbonate; decreases effect of gastrin

A

Secretin

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13
Q

Stimulates GB contraction, sphincter of oddi relaxation; inhibits gastric emptying

A

CCK

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14
Q

Increases insulin secretion, inhibits gastric emptying

A

Glucose dependent insulontrophic enzyme

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15
Q

Removed remnant food in GI tract

A

Motilin

16
Q

Most potent stimuli for gastrin production

A

Tryptophan, phenylalanine, methionine

17
Q

Candidate GI hormone that inhibits pancreatic HCO3 and enzymes

A

Pancreatic polypeptide

18
Q

GLP 1 is secreted by?

A

L cells

19
Q

Candidiate GI hormone that stimulates insulin production

A

GLP 1

20
Q

Inhibits release of all GI hormones

A

Somatostatin

21
Q

Increases H secretion; potentiates gastrin and Ach action

A

Histamine

22
Q

NT that increases salivary secretion

A

NE

23
Q

Contractions due to subthreshold slow waves

A

Tonic contractions

24
Q

Contractions due to spike potentials

A

Phasic contractions

25
Q

GI pacemaker

A

Intersititial cells of cajal

26
Q

Spike potential’s depolarization is due to

A

Calcium

27
Q

Receptive relaxation of the orad stomach is due to

A

Vagovagal reflex mediated by VIP

28
Q

Responsible for migrating myoelectric complex

A

Motilin

Physiology (22 decks)

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