mishaljabeen65 mishaljabeen65

02-03-2017
Biology

contestada

A person who's resting heart rate is 55 and after exercise, his heart rate is 160, is said to have a well developed heart muscle. Why is this so?

Respuesta :

hayleebug0806 hayleebug0806

02-03-2017

because when exercising your heart pumps more blood to your body and
it has more space to fill so it beats faster

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