Baroreceptors are most sensitive to changes in which of these factors
A)blood pressure
B)the carbon dioxide level in the blood
C)the degree of contraction of skeletal muscles
D)the oxygen level in the blood

Question

Quizplus · Accepted Answer

Baroreceptors are specialized receptors located in the walls of blood vessels, especially in the carotid sinuses and aortic arch, that detect changes in blood pressure. They are most sensitive to changes in blood pressure and relay this information to the cardiovascular control center in the brainstem to regulate heart rate and blood vessel diameter, thereby maintaining blood pressure within normal limits. Baroreceptors are not sensitive to changes in carbon dioxide or oxygen levels in the blood or the degree of contraction of skeletal muscles.

Baroreceptors Are Most Sensitive to Changes in Which of These