Question

Assertion :Diabetes insipidus is marked by excessive urination and too much thirst of water. Reason: Anti-diuretic hormone(ADH) is secreted by the posterior lobe of pituitary gland.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Diabetes insipidus (DI) is an uncommon condition in which the kidneys are unable to prevent the excretion of water. DI occurs when the kidneys cannot concentrate the urine normally, and a large amount of dilute urine is excreted. The amount of water excreted in the urine is controlled by antidiuretic hormone (ADH). ADH is also called vasopressin. ADH is produced in a part of the brain called the hypothalamus. It is then stored and released from the pituitary gland. DI caused by a lack of ADH is called central diabetes insipidus.

So, the correct answer is option B.