Respiatory System
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Title: Respiatory System

Essay Details:

Subject: Science
Author: Brett P
Date: August 7, 2014
Level: University
Grade: A
Length: 2 / 355

Essay text:

The more blood pumped, the more oxygen is available to the exercising muscles, regular exercise gives muscles a better ability to extract and use the oxygen to produce more work. The heart adapts to exercise over time so it can pump more blood per stroke. The hearts work rate is measured in beats per minute, a very athletic person may have a resting heart rate of 40bpm and in someone who does little exercise may have an RHR as high as 100bpm, this is due to the heart being able to deliver more blood around the circulatory system with fewer beats. The heart's main pumping chambers are the ventricles...

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