The main homeostatically regulated variable of the cardiovascular system is the mean systemic arterial blood pressure.

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Quizplus · Accepted Answer

The mean systemic arterial blood pressure is indeed the main homeostatically regulated variable of the cardiovascular system. This regulation is accomplished through various mechanisms, including the baroreceptor reflex and the renin-angiotensin-aldosterone system. By adjusting factors such as heart rate, cardiac output, and peripheral vascular resistance, the body is able to maintain blood pressure within a relatively narrow range to ensure adequate perfusion of vital organs.

The Main Homeostatically Regulated Variable of the Cardiovascular System Is