Cubbly Posted May 8, 2015 Posted May 8, 2015 (edited) Does the heart need blood from itself? If so how does it do it? Edited May 8, 2015 by Cubbly
fiveworlds Posted May 8, 2015 Posted May 8, 2015 Yes there is a series of blood vessels which supply blood to the heart for its own nourishment. 1
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