1
Duodenum, which has characteristic Brunner's glands, secretes two hormones called
- kinase, estrogen
- secretin, cholecystokinin
- prolactin, parathormone
- estradiol, progesterone.
Answer
(2) secretin, cholecystokinin
Solution
As per NCERT, cells in different parts of the gastrointestinal tract secrete four major peptide hormones: gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP).
⇒ Secretin acts on the exocrine pancreas and stimulates secretion of water and bicarbonate ions.
⇒ CCK acts on both pancreas and gall bladder and stimulates secretion of pancreatic enzymes and bile juice.
∵ Both are secreted by the duodenal mucosa (the Brunner's glands themselves secrete an alkaline mucus).
∴ The two hormones are secretin and cholecystokinin.
Answer: (2)
Out of syllabusAIPMT 2004