The answer to this anatomy question is simple. The one that sets the pace of the heart rate is called the sinoatrial node, a group of cells located <span>in the wall of the </span>right atrium<span> of the </span>heart<span>.</span>
B. 50-60%....the true recommendation is 45-65% but since that is not an option I would go with choice B
I need to see the choices in order to answer the question.
I think the answer is 10,000,
because 500 mL and 20 is equal to 10,000.
500 x 20 = 10,000
