Short Answer Type
Long Answer TypeShort Answer TypeLong Answer TypeFour major peptides hormone are secreted by the endocrine cells present in the gastro-intestinal tract :
It secretes the following hormones :
1. Gastrin : This hormone acts on the gastric gland and stimulate them to secrete hydrochloric acid and pepsinogen.
2. Secretin : It acts on the exocrine pancreas and stimulates secretion of water and bicarbonates.
3. Cholecystokinin (CCK) : It stimulates gall bladder to release bile and stimulates pancreas to secrete pancreatic juice.
4. Gastric inhibitory peptide (GIP) - inhibts gastric secretion and motility.
Explain the following :
(a) Insulin lowers the blood sugar level.
(b) Hypothalamus and pituitary function as an integrated and coordinated system.
(c)Body growth is greatly accelerated at puberty in the male.
(d) Adrenal medulla and the sympathetic nervous system function as a closely integrated system.
(e) Pituitary gland regulates the reproductive system.
Short Answer Type
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