The metabolic pathways of cardiac muscle make it
A) somewhat susceptible to heart attack, because it relies so exclusively on aerobic metabolism.
B) extremely susceptible to heart attack, because it uses such a variety of fuel sources.
C) somewhat susceptible to heart attack, because it has so few mitochondria.
D) relatively resistant to heart attack, because it uses exclusively anaerobic metabolism.
E) relatively resistant to heart attack, because it has a great capacity to accrue oxygen debt.

Question

Quizplus · Accepted Answer

Cardiac muscle relies heavily on aerobic metabolism, making it somewhat susceptible to heart attack if oxygen supply is compromised.

The Metabolic Pathways of Cardiac Muscle Make It