Fall in blood pressure due to loss of blood i | vedclass

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Question

(C) When blood loss occurs,the total blood volume decreases,leading to a drop in blood pressure.To compensate for this,the baroreceptors in the caroti

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Heart beat is increased

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(C) When blood loss occurs,the total blood volume decreases,leading to a drop in blood pressure.To compensate for this,the baroreceptors in the carotid sinuses and aortic arch detect the decrease in pressure and signal the medulla oblongata.The medulla oblongata then triggers the sympathetic nervous system to increase the heart rate and force of contraction.This increase in heart rate helps to maintain cardiac output and restore blood pressure to normal levels.

Fall in blood pressure due to loss of blood is soon restored because the

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