The Stomach Mucosa and the Gastric Glands Flashcards by Korey koper

Q

Exocrine cells?

A

Mucous cells

Chief cells

Parietal cells

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Q

Endocrine/ Paracrine cells?

A

ECL cells ( enterochromaffin like)

G cells

D cells

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Q

Mucous cells product secreted?

A

Alkaline mucus

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Q

Chief cells product secreted?

A

Pepsinogen

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Q

Parietal cell product secreted?

A

HCl

IF

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Q

ECL cells product secreted?

A

Histamine

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Q

G cells product secreted?

A

Gastrin

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Q

D cells product secreted?

A

Somatostatin

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Q

Mucous cells stimuli for secretion?

A

mechanical stimulation by contents

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Q

Chief cells stimuli for secretion?

A

Each, gastrin

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Q

Parietal cells stimuli for secretion?

A

ACh, gastrin, histamine

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Q

ECL cells stimuli for secretion?

A

Each, gastrin

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Q

G cells stimuli for secretion?

A

Protein products, ACh

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Q

D cells stimuli for secretion?

A

Acid

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Q

Mucous cell function of secretory product?

A

Protects mucosa against mechanical, pepsin, and acid injury

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Q

Chief cell function of secretory product?

A

When activated, begins protein digestion

Q

Parietal cell function of secretory product: HCl??

A

Activated pepsinogen,

breaks down connective tissue

denatures proteins

kills microorganisms

Q

Parietal cell function of secretory product: IF??

A

facilitates absorption of Via. B12

Q

ECL cells function of secretory product?

A

stimulates parietal cells

Q

G cells function of secretory product??

A

stimulates parietal, chief, and ECL cells

Q

D cell function of secretory product?

A

inhibits parietal, G, and ECL cells

somatostatin - stops everything

Octreotide