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May 30, 2015

Homework Help: Biology

Posted by Stuck on Monday, December 21, 2009 at 10:19pm.

When oxygen uptake is low, a high proportion of the total amount of blood pumped goes to the intestines. When oxygen uptake is high, a small proportion of blood goes to the intestines. Explain the differences in terms of the needs of the body during rest and during exercise.

Is it because during exercise, the body is more occupied with breathing and improving the muscles, and so the intestines are not as "important"?

Also, why does blood volume supplied to the skin increase as oxygen uptake increases? I'm confused on how more blood flow to the skin would help during exercise (sweating?)

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