PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cardiac Output
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Bicuspid Valve
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Vascular Shunting
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None of the above
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Detailed explanation-1: -During exercise, the cardiovascular system redistributes the blood so that more of it goes to the working muscles and less of it goes to other body organs such as the digestive system. This redirection of blood flow is caused by a mechanism (or process) called the vascular shunt mechanism.
Detailed explanation-2: -Blood is pumped from the ventricles into large elastic arteries that branch repeatedly into smaller and smaller arteries until the branching results in microscopic arteries called arterioles. The arterioles play a key role in regulating blood flow into the tissue capillaries.
Detailed explanation-3: -Precapillary sphincters are the muscle tissue that aids in redirecting blood flow in the capillaries. This is formed from circular smooth muscles which adjust the blood flowing into the capillaries and redirect it to organs and tissues where it is mostly needed.