Wednesday 21 March 2012

Cardiovascular system

What we learned today was about the cardiovascular system.
How we tested our heart rate was by walking around the astro for about 6 min and we checked our heart rate before, middle and after the walk.

What happend was that before we walked the heart rate was much slower than  doing it and after was beating harderand for a longer peroid of time because our body need more oxygen and water thats why our BPM was higher inbetween and after the walk.

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