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The Human Heart Rate
Essay specific features
Written by:
Eldon H
Date added:
December 29, 2013
Level:
University
Grade:
A
No of pages / words:
3 / 813
Was viewed:
6647 times
Rating of current essay:
Essay content:
With an increase in body movement there is an increase in the cell's energy use and the heart rate must increase to pump enough blood to the cells. Then, as body movement decreases again, so does the heart rate. The heart muscle can be enlarged with regular vigorous exercise. A larger heart is more efficient than a smaller heart as it is stronger and can hold more blood...
displayed 300 characters
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A larger heart is more efficient than a smaller heart as it is stronger and can hold more blood. The heart is a cardiac muscle and contracts by itself, even when removed from the body. The muscles rhythmic beat is sped up or slowed down by the autonomic nerves that are attached to the heart. The heartbeat has two phases...
displayed 300 characters
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