Functional Cells of GI Tract and Associated Enzymes

Question 1

‘A’ Cell

Answer 1

Glucagon

Stomach and Small Intestine

Question 2

‘D’ Cell

Answer 2

Somatostatin

Stomach, small, and large intestine

Question 3

‘EC’ Cell

Answer 3

Serotonin and Substance P

Stomach, small, and large intestine

Question 4

‘ECL’ Cell

Answer 4

Histamine

Stomach

Question 5

‘G’ Cell

Answer 5

Gastrin

Stomach and Small Intestine

Question 6

‘GL’ Cell

Answer 6

Glicentin

Stomach, small, and large intestine

Question 7

‘I’ Cell

Answer 7

Cholecystokinin

Small intestine

Question 8

‘K’ Cell

Answer 8

Gastric Inhibitory Peptide

Small intestine

Question 9

‘Mo’ Cell

Answer 9

Motilin

Small intestine

Question 10

‘N’ Cell

Answer 10

Neurotensin

Small intestine

Question 11

‘PP (F)’ Cell

Answer 11

Pancreatic Polypeptide

Stomach and large intestine

Question 12

‘S’ Cell

Answer 12

Secretin

Small intestine

Question 13

‘VIP’ Cell

Answer 13

Vasoactive intestinal peptide

Stomach, small, and large intestine

Question 14

Chief Cells

Answer 14

Pepsinogen (proenzyme for pepsin, activated at low pH)

Stomach

Question 15

Parietal Cells

Answer 15

H+ secreting via H+ K+ ATPase pump

Stomach

Question 16

Paneth Cells

Answer 16

Defensins, lysozyme, phospholipase

Stored in large eosinophilic granules

Small intestine

Question 17

Brunner’s Glands

Answer 17

Bicarbonate

Duodenum only

Question 18

‘M-Cell’

Answer 18

Antigen Presenting Cells (APCs) of Gut

akin to dendritic cells

Found within Peyer’s patches, esp. Ileum

Question 19

Goblet Cells

Answer 19

Mucin producing

Throughout intestines & stomach

Question 20

Serous Cells

Answer 20

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

Secrete IgA

Salivary Glands

Question 21

Mucous Cells

Answer 21

Lubricative and Protective Secretions

Salivary Glands