Which hormone among the following is involved in central regulation of blood flow?

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Multiple Choice

Which hormone among the following is involved in central regulation of blood flow?

Angiotensin II is the hormone that links cardiovascular control with central regulation of blood flow. It tightens vascular tone and raises blood pressure, and it also acts in the brain on areas where the blood–brain barrier is permeable to influence autonomic output, thirst, and vasopressin release. This means it can adjust how hard blood vessels contract and how much blood the brain receives, aligning circulation with the body's needs. Cortisol is mainly a metabolic and stress hormone, melatonin regulates sleep–wake cycles, and serotonin has diverse roles but is not the primary driver of central regulation of cerebral blood flow.

Angiotensin II is the hormone that links cardiovascular control with central regulation of blood flow. It tightens vascular tone and raises blood pressure, and it also acts in the brain on areas where the blood–brain barrier is permeable to influence autonomic output, thirst, and vasopressin release. This means it can adjust how hard blood vessels contract and how much blood the brain receives, aligning circulation with the body's needs. Cortisol is mainly a metabolic and stress hormone, melatonin regulates sleep–wake cycles, and serotonin has diverse roles but is not the primary driver of central regulation of cerebral blood flow.

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