Question

in response to high blood pressure, stretch receptors called ________ in the walls of arteries carrying blood to the head, will trigger a reflex that causes the heart to ________ its beats per minute.
baroreceptors; decrease
proprioceptors; decrease
baroreceptors; increase
proprioceptors; increase
chemoreceptors; increase

Explanation:

Baroreceptors are stretch receptors that detect changes in blood pressure. When blood pressure is high (as in this case), baroreceptors in arteries (like the carotid sinus which supplies blood to the head) are activated. The reflex triggered by baroreceptors in response to high blood pressure is a negative - feedback mechanism. The goal is to lower blood pressure. One way the body does this is by decreasing the heart rate (beats per minute). Proprioceptors detect body position and movement, not blood - pressure - related stretch. Chemoreceptors detect chemical changes (like oxygen, carbon dioxide, or pH levels) in the blood, not stretch due to blood pressure.

Answer:

A. baroreceptors; decrease