Upon vigorous exercise, your heart rate increases to 200 beats per minute to supply sufficient oxygen to muscles. Which is responsible for this regulation of the heart rate? A. Semilunar valves

B. Sinoatrial node

C. Aorta

Question

Biology

Rey Gillespie

6 July, 16:52

Upon vigorous exercise, your heart rate increases to 200 beats per minute to supply sufficient oxygen to muscles. Which is responsible for this regulation of the heart rate? A. Semilunar valves

B. Sinoatrial node

C. Aorta

+1

Answers (1)

Know the Answer?

Ramiro Shaffer · Answer 1

I think the correct answer from the choices listed above is option B. The one that is responsible for the regulation of the heart rate is the sinoatrial node. It is the heart's peacemaker. It is a specialized bundle of neurons which controls the cardiac function. Hope this answers the question.

Upon vigorous exercise, your heart rate increases to 200 beats per minute to supply sufficient oxygen to muscles. Which is responsible for this regulation of the heart rate? A. Semilunar valvesB. Sinoatrial nodeC. Aorta

Upon vigorous exercise, your heart rate increases to 200 beats per minute to supply sufficient oxygen to muscles. Which is responsible for this regulation of the heart rate? A. Semilunar valves

B. Sinoatrial node

C. Aorta