If a person drinks large amounts of water in a short period of time, he may die of water toxicity. ADH can help prevent water retention by interaction with target cells in

Posterior pituitary

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Kidney

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Bladder

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Adrenal gland

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Solution

The correct option is B
Kidney

The hypothalamus produces a hormone known as antidiuretic hormone (ADH), which is transported to and released from the posterior pituitary gland. The principal action of ADH is to regulate the amount of water excreted by the kidneys. As ADH which is also known as vasopressin causes direct water reabsorption from the kidney tubules, salts and wastes are concentrated in what will eventually be excreted as urine. When ADH is absent, the kidneys do not retain water and excessive quantities of urine are produced.

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Similar questions

Which one of the following secreted by posterior pituitary regulates water retention by the kidneys?

Hormone	Source	Function
A.Vasopressin	Posterior pituitary	Increases loss of water through urine
B.Norepinephrine	Adrenal medulla	Increases heartbeat, rate of respiration and alertness
C.Glucagon	Beta-cells of Islets of Langerhans	Stimulates glycogenolysis
D.Prolactin	Anterior pituitary	Regulates growth of mammary glands and milk formation in females

The faulty functioning of an endocrine gland can make a person very short or very tall. This gland is

(a) thyroid

(b) pineal

(d) pituitary

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