When the baroreceptors in the aorta and carotid arteries sense a drop in blood p

Question

When the baroreceptors in the aorta and carotid arteries sense a drop in blood pressure Question options:

a.they decrease signal firing rate to the cardiac center in the medulla oblongata decreasing heart rate

b.they decrease signal firing rate to the cardiac center in the medulla oblongata increasing heart rate

c. they do not influence heart rate.

d. they increase signal firing rate to the cardiac center in the medulla oblongata increasing heart rate they increase signal firing rate to the cardiac center in the medulla oblongata decreasing heart ra

Explanation / Answer

During the cases of orthostatic hypotension or even hypovolaemic shock, the blood pressure gets to fall on the whole and at this context, the baroreceptor firing rate gets to decrease and in order to restore the blood pressure, the baroreceptor reflexes aid a lot by increasing the heart rate.

Therefore b.they decrease signal firing rate to the cardiac center in the medulla oblongata increasing heart rate is the answer

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