Functional Cells of GI Tract and Associated Enzymes Flashcards

1
Q

‘A’ Cell

A

Glucagon

Stomach and Small Intestine

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2
Q

‘D’ Cell

A

Somatostatin

Stomach, small, and large intestine

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3
Q

‘EC’ Cell

A

Serotonin and Substance P

Stomach, small, and large intestine

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4
Q

‘ECL’ Cell

A

Histamine

Stomach

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5
Q

‘G’ Cell

A

Gastrin

Stomach and Small Intestine

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6
Q

‘GL’ Cell

A

Glicentin

Stomach, small, and large intestine

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7
Q

‘I’ Cell

A

Cholecystokinin

Small intestine

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8
Q

‘K’ Cell

A

Gastric Inhibitory Peptide

Small intestine

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9
Q

‘Mo’ Cell

A

Motilin

Small intestine

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10
Q

‘N’ Cell

A

Neurotensin

Small intestine

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11
Q

‘PP (F)’ Cell

A

Pancreatic Polypeptide

Stomach and large intestine

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12
Q

‘S’ Cell

A

Secretin

Small intestine

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13
Q

‘VIP’ Cell

A

Vasoactive intestinal peptide

Stomach, small, and large intestine

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14
Q

Chief Cells

A

Pepsinogen (proenzyme for pepsin, activated at low pH)

Stomach

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15
Q

Parietal Cells

A

H+ secreting via H+ K+ ATPase pump

Stomach

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16
Q

Paneth Cells

A

Defensins, lysozyme, phospholipase

Stored in large eosinophilic granules

Small intestine

17
Q

Brunner’s Glands

A

Bicarbonate

Duodenum only

18
Q

‘M-Cell’

A

Antigen Presenting Cells (APCs) of Gut

akin to dendritic cells

Found within Peyer’s patches, esp. Ileum

19
Q

Goblet Cells

A

Mucin producing

Throughout intestines & stomach

20
Q

Serous Cells

A

Watery and enzyme producing (amylase, DNAse, and RNAse)

Secrete IgA

Salivary Glands

21
Q

Mucous Cells

A

Lubricative and Protective Secretions

Salivary Glands