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Histology of Duodenum

Which of the ...

Question

Which of the following secretes Gastric Inhibitory Peptide (GIP)?

A

Oesophagus

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B

Ileum

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C

Duodenum

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D

Stomach

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Solution

The correct option is C Duodenum
Enterogastrone (Gastric Inhibitory Peptide or GIP) is secreted by the epithelium of the duodenum. It acts on the stomach and inhibits the secretion of gastric juice. It also inhibits gastric motility. It slows down the gastric contraction.
Stomach secretes hormones like gastrin, serotonin, histamine and somatostatin.
Oesophagus is not known to secrete any hormone or digestive enzyme.

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Q. Consider the following four statements (a-d) and select the option which includes the correct ones only.
(a) The thyroid hormone play an important role in basal metabolic rate and erythropoisis
(b) Glucocorticoids inhibits inflammatory reactions by suppressing the immune system and promotes erythropoisis
(c ) Androgen promotes development maturation and function of the male sex organ as well as erythropoisis
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Q. Give below is a table showing the role of some major gastro-intestine peptide hormones in digestion. Which of the following is not correctly matched?

Hormones	Source of Secretion	Action
(1) CCK	Duodenum	Contraction of gall bladder, inhibits gastric emptying
(2) Gastrin	Pyloric stomach	secretion of $H C l$
(3) Secretein	Duodenum	Decrease pancreatic $H C O_{3}^{-}$ and $H_{2} O$
(4) GIP (Gastricinhibitory peptide)	Duodenum	Inhibition of gastric secretion and motility

Q. Which of the following hormone secretes a gastric secretion?

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Histology of Duodenum

Standard XII Biology

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