Which organ of the body releases antidiuretic hormone?Aposterior pituitary glandBanterior pituitary glandChypothalamusDkidneys
Question
Which organ of the body releases antidiuretic hormone?
- A) posterior pituitary gland
- B) anterior pituitary gland
- C) hypothalamus
- D) kidneys
Solution
Answer:
The organ that releases antidiuretic hormone (ADH) is the posterior pituitary gland.
Explanation:
Antidiuretic hormone, also known as vasopressin, is produced in the hypothalamus but is stored and released by the posterior pituitary gland. When the body needs to conserve water, the posterior pituitary gland secretes ADH into the bloodstream. This hormone acts on the kidneys to promote water reabsorption, thus reducing urine output and helping to regulate the body’s fluid balance.
Among the options provided:
- A. Posterior pituitary gland - Correct
- B. Anterior pituitary gland - Incorrect, as it releases different hormones.
- C. Hypothalamus - Incorrect for release; it produces ADH.
- D. Kidneys - Incorrect, as they are the target organ for ADH, not the source.
Therefore, the correct answer is A. posterior pituitary gland.
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