ADH which actively transports water from the filtrate in collecting tubules back to kidney is released by?
Correct answer: A. Pituitary gland
- A. Pituitary gland
- B. Adrenal gland
- C. Rectal gland
- D. Both Pituitary and Rectal glands
Explanation
The pituitary gland's posterior lobe is largely made up of axons of neurosecretory cells of the hypothalamus where ADH is produced. ADH then moves down axons to axon endings. From where it is released into the bloodstream when appropriate.
This question appeared on the HEC Phase I 2017 paper, which you can sit online with every answer explained.
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About Kidney and Urinary System
The kidney and urinary system remove nitrogenous wastes, regulate water and ion balance, and help maintain blood pH through filtration, selective reabsorption and secretion. Questions cover nephron structure, ultrafiltration, the loop of Henle, collecting ducts, urine formation and the roles of ADH and aldosterone, while distinguishing excretion from egestion.
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