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Regarding gastro-intestinal hormones : Match the following and choose the most appropriate option: (each option on 3 columns can be matched to multiple options on the another 2 columns) eg. A-(iv)-3,5; B-(i); C-(iii)-2; D-(ii),(vi),(vii)-1; (iii),(v)-6;

gastro-intestinal hormones site of action action
A.cholecystokinin (i) gastric glands 1. stimulates the secretion of bile juice
B. gastric inhibitory peptide  (ii) exocrine pancreas 2. inhibits gastric motility
C. Gastrin (iii) gall bladder 3. inhibits gastric secretion
D. secretin 4. stimulates the secretion of pancreatic enzymes
5. stimulates the secretion of hydrochloric acid
6. stimulates the secretion of bicarbonate and water
7. stimulates the secretion of pepsinogen

( A ) A-(iii)-1; B-(i)-3; B-2; C-(i)-5; D-(ii)-4
( B ) A-(ii)-4; A-(iii)-1; B-(i)-3; C-(i)-5,7; D-(ii)-6
( C ) A-(ii)-4; A-(iii)-1; B-2; C-(i)-3,7; D-(ii)-6
( D ) A-(ii)-4; A-(iii)-1; B-(i)-3; B-2; C-(i)-5,7; D-(ii)-6

1 Answer

(D) is the right answer.

Endocrine cells present in different parts of the gastro-intestinal tract secrete four major peptide hormones, namely gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP). Gastrin acts on the gastric glands and stimulates the secretion of hydrochloric acid and pepsinogen. Secretin acts on the exocrine pancreas and stimulates secretion of water and bicarbonate ions. CCK acts on both pancreas and gall bladder and stimulates the secretion of pancreatic enzymes and bile juice, respectively. GIP inhibits gastric secretion and motility
answered Apr 2, 2014 by pady_1

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