[Solved] The Cardiovascular System: Blood Vessels And Hemodynamics - Chapter questions - Problem 14F - Principles of Anatomy and Physiology 14th Edition(Edition)

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If one rises suddenly from a prone position,gravity would pull blood away from the head  and neck, and cause it to pool in the free limbs. As a consequence blood pressure would fall in the head and neck. This  pressure change would be sensed by the baroreceptors of the cardiac sinus, and aortic arch . The baroreceptors would slow the rate at which impulses were sent to the cardiovascular center. The CV center would respond by increasing sympathetic stimulation of the myocardium and the adrenal medulla; concurrently, it would also decrease cardiac parasympathetic stimulation. This combined feedback would serve to increase heart rate and peripheral resistance. Hemostasis would be reestablished as blood pressure and cardiac output returned to normal. This cardiovascular center reflex usually occurs very quickly in an healthy adult. However,  if it is delayed, as sometimes happens in elderly persons , fainting may ensue.

Question Text	The Cardiovascular System: Blood Vessels And Hemodynamics - Chapter questions - Problem 14F
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The Cardiovascular System: Blood Vessels And Hemodynamics - Chapter questions - Problem 14F

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