The absorption and use of calcium are regulated by:
Correct answer: A. Parathormone
- A. Parathormone
- B. Adrenaline
- C. Thyroxin
- D. Thiamin
- E. Prolactin
Explanation
Circulating parathyroid hormone targets the distal convoluted tubule and collecting duct, directly increasing calcium reabsorption.
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About Chemical Coordination and Hormones
Chemical coordination uses hormones released by endocrine glands and carried in blood to specific target cells. Coverage includes the pituitary, thyroid, pancreas, adrenal glands, ovaries and testes, feedback control, and the contrast between slower, longer-lasting hormonal responses and rapid nervous coordination.
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