Metabolically, cardiac muscle relies on

A.  aerobic metabolism using glycolysis of glycogen to meet most ATP demands.
B.  aerobic metabolism using many mitochondria and a rich supply of myoglobin.
C.  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.
D.  anaerobic metabolism using myoglobin, creatin kinase, and ketone bodies.


B

Anatomy & Physiology

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