Which of the posterior pituitary hormones causes the kidneys to decrease its excretion of urine?
ADH
Oxytocin
ACTH
FSH
The Correct Answer is A
A. ADH: Antidiuretic hormone promotes water reabsorption in the kidneys, reducing urine output.
B. Oxytocin: Stimulates uterine contractions and milk ejection; not related to urine regulation.
C. ACTH: Secreted by anterior pituitary; stimulates adrenal cortex, not kidneys.
D. FSH: Stimulates follicles in the ovaries; no effect on kidney function.
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Related Questions
Correct Answer is C
Explanation
A. Progesterone: Related to reproductive cycle; not primary in stress response.
B. Testosterone: May decrease under stress, but this is not the primary indicator.
C. Cortisol: Cortisol is a stress hormone secreted by the adrenal cortex; elevated in stress.
D. LH: May fluctuate with stress, but not a main stress indicator.
Correct Answer is B
Explanation
A. Causes the release of hormones that form the Graafian follicle: Hormones like FSH and LH stimulate the development of the Graafian follicle; ovulation is the release of an egg from it.
B. Normally occurs on day 14 of a 28-day cycle: Ovulation typically occurs mid-cycle around day 14.
C. Normally occurs on day 28 of a 28-day cycle: Day 28 is usually the end of the cycle when menstruation begins, not ovulation.
D. Is caused by the secretion of hCG: Ovulation is triggered by a surge in luteinizing hormone (LH), not hCG.
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