an old person consultedurologist and briefly him about his disease. doctor asked him to undergo some clinical tests.on the basis of test reports,the doctor told him that he had the deficiency of ADH and that is the main cause of his disease. doctor then advises him to undergo for its treatment
i)to which disease an old person is suffering
ii)expand ADHand from where it is secreted?
iii)under what conditions of the body it is released?
iv)what role does ADH play?v)which

(a) Diabetes insipidus
(b) ADH means anti-diuretic hormone. It is secreted by posterior lobe of pituitary gland.
(c) ADH increases the reabsorption of water in the distal convoluted tubule and collecting ducts of the nephrons of the kidneys. Involuntary muscles in the walls of the intestine, gall bladder, urinary bladder and blood vessel are stimulated to contract by ADH.

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