8) The red blood cells are recycled every ______.

a) 6 hours
b) 6 days
c) 6 weeks
d) 6 months

The answer is c: 6 weeks.

Back to the red blood cells:
Those little fellows who circulate through the body
carrying packages of oxygen and carbon dioxide.

Those cells do their work for 40 to 45 days.
When they have been used up,
the spleen removes them from the bloodstream.

The old cells are replaced by new ones formed
in the bone marrow and lymphoid tissues.


You may be interested to read an article by Deepak Chopra which touches on The Whole Works.
It is archived at the Noetic Sciences Review, Vol. 28, Winter 1993, pages 16-21

Timeless Mind, Ageless Body

or

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