Gastric Secretions and Cells Flashcards

1
Q

Secretes mucous

A

Mucous neck cells

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2
Q

Components of mucous

A

Mucin
Electrolytes
Phospholipids
Water

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3
Q

Secretes HCL and IF

A

Parietal cells

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4
Q

Stimulates release of HCl from parietal cells

A

Gastrin
ACh
Histamine

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5
Q

Inhibits release of HCl from parietal cells

A

Somatostatin

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6
Q

Synthesize pepsinogen and gastric lipase

A

Chief cells

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7
Q

Stimulates pepsinogen secretion

A

ACh

HCl

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8
Q

Activates pepsinogen

A

HCl
Pepsin
–Cleaves peptide bonds of denatured proteins

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9
Q

Synthesize histamine

A

ECL cells

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10
Q

Stimulates histamine secretion

A

Gastrin

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11
Q

Inhibits histamine secretion

A

Somatostatin

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12
Q

Synthesize somatostatin

A

D Cells

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13
Q

Stimulates somatostatin secretion

A

HCl and Gastrin

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14
Q

Inhibits somatostatin secretion

A

ACh

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15
Q

Synthesize gastrin

A

G Cells

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16
Q

Stimulates gastrin secretion

A

GRP (gastrin releasing peptide)

17
Q

Inhibits gastrin secretion

A

Somatostatin