Gastric Secretions and Cells Flashcards by Mallory Koula

Q

Secretes mucous

A

Mucous neck cells

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Q

Components of mucous

A

Mucin
Electrolytes
Phospholipids
Water

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Q

Secretes HCL and IF

A

Parietal cells

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Q

Stimulates release of HCl from parietal cells

A

Gastrin
ACh
Histamine

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Q

Inhibits release of HCl from parietal cells

A

Somatostatin

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Q

Synthesize pepsinogen and gastric lipase

A

Chief cells

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Q

Stimulates pepsinogen secretion

A

ACh

HCl

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Q

Activates pepsinogen

A

HCl
Pepsin
–Cleaves peptide bonds of denatured proteins

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Q

Synthesize histamine

A

ECL cells

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Q

Stimulates histamine secretion

A

Gastrin

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Q

Inhibits histamine secretion

A

Somatostatin

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Q

Synthesize somatostatin

A

D Cells

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Q

Stimulates somatostatin secretion

A

HCl and Gastrin

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Q

Inhibits somatostatin secretion

A

ACh

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Q

Synthesize gastrin

A

G Cells

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Q

Stimulates gastrin secretion

A

GRP (gastrin releasing peptide)

Q

Inhibits gastrin secretion

A

Somatostatin