Multiple Choice
Which hormone directly stimulates ovulation (the release of an oocyte) from the ovary?
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16. The Endocrine System
Hormone Review Table
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Which hormone stimulates the thirst mechanism?
A
Atrial natriuretic peptide (ANP)
B
Insulin
C
Aldosterone
D
Angiotensin II
Verified step by step guidance1
Understand the role of the thirst mechanism: it is a physiological response that prompts an individual to drink water, helping to maintain fluid balance and blood pressure.
Review the hormones listed and their primary functions: Atrial natriuretic peptide (ANP) promotes sodium excretion and reduces blood volume; Insulin regulates blood glucose levels; Aldosterone increases sodium retention in the kidneys.
Recognize that Angiotensin II is a hormone involved in the renin-angiotensin system, which plays a key role in regulating blood pressure and fluid balance.
Identify that Angiotensin II stimulates the thirst center in the brain, prompting increased water intake to restore blood volume and pressure.
Conclude that among the options, Angiotensin II is the hormone that directly stimulates the thirst mechanism.
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