NEET Zoology Digestion and Absorption Questions Solved


Duodenum has characteristic Brunner's glands which secret two hormones called 

(a) kinase, estrogen

(b) secretin, cholecystokinin

(c) prolactin, parathromone

(d) estradion, progesterone

Audio Explanation:


(b) Brunner's gland secrete large amount of mucus and bicarbonates to protect duodenal mucosa and to neutralise the acidic chyme. It also secretes two hormones

(a) Secretin                   b) Cholecystokinin (CCK)

These stimulate:

(i) Secretion of pancreatic juice by pancreas.

(ii) Release of bile from gall bladder.

(ii) Formation of bile by liver and pancreatic juice.

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