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Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?
- a)Maturation of the egg and sperm
- b)Decrease in calcium levels
- c)Water retention
- d)Increase in thyroid hormone level
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following is a physiological function that is mediated by...
The posterior pituitary gland releases two hormones: oxytocin and antidiuretic hormone (ADH), also known as vasopressin. Among these, ADH is primarily responsible for regulating water balance in the body. ADH acts on the kidneys to increase water reabsorption, which reduces urine production and helps retain water in the body. This process is essential for maintaining proper hydration and preventing excessive water loss.
Options A, B, and D are not functions mediated by hormones released by the posterior pituitary. Maturation of the egg and sperm is regulated by follicle-stimulating hormone (FSH) and luteinizing hormone (LH) released by the anterior pituitary, not the posterior pituitary (option A is incorrect). Calcium levels are regulated by parathyroid hormone (PTH) and calcitonin, not hormones from the posterior pituitary (option B is incorrect). The release of thyroid hormone is regulated by the hypothalamus and anterior pituitary, specifically through thyrotropin-releasing hormone (TRH) and thyroid-stimulating hormone (TSH), respectively (option D is incorrect).
Options A, B, and D are not functions mediated by hormones released by the posterior pituitary. Maturation of the egg and sperm is regulated by follicle-stimulating hormone (FSH) and luteinizing hormone (LH) released by the anterior pituitary, not the posterior pituitary (option A is incorrect). Calcium levels are regulated by parathyroid hormone (PTH) and calcitonin, not hormones from the posterior pituitary (option B is incorrect). The release of thyroid hormone is regulated by the hypothalamus and anterior pituitary, specifically through thyrotropin-releasing hormone (TRH) and thyroid-stimulating hormone (TSH), respectively (option D is incorrect).
Therefore, the physiological function mediated by a hormone released by the posterior pituitary is water retention (option C).
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Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?a)Maturation of the egg and spermb)Decrease in calcium levelsc)Water retentiond)Increase in thyroid hormone levelCorrect answer is option 'C'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?a)Maturation of the egg and spermb)Decrease in calcium levelsc)Water retentiond)Increase in thyroid hormone levelCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?a)Maturation of the egg and spermb)Decrease in calcium levelsc)Water retentiond)Increase in thyroid hormone levelCorrect answer is option 'C'. Can you explain this answer?.
Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?a)Maturation of the egg and spermb)Decrease in calcium levelsc)Water retentiond)Increase in thyroid hormone levelCorrect answer is option 'C'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?a)Maturation of the egg and spermb)Decrease in calcium levelsc)Water retentiond)Increase in thyroid hormone levelCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?a)Maturation of the egg and spermb)Decrease in calcium levelsc)Water retentiond)Increase in thyroid hormone levelCorrect answer is option 'C'. Can you explain this answer?.
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