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A member asked:
How is the heart rate slowed when the body needs less oxygen?
A doctor has provided 1 answer
Our body: Maintained a biological balanced status through a variety of different mechanism. Our heart rate is control by different mechanism. One is the autonomic nervous system. Parasympathetic decrease and sympathetic increase. A well balance o2 delivery: o2 demand will keep hr normal if no other stressors to the body(diseases).
Answered 9/2/2013
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