The Cardiac Muscle

Multiple Choice

The cardiac muscle

A) extracts oxygen and nutrients from the blood within its chambers
B) receives its blood supply primarily during ventricular systole when blood is forced into coronary arteries
C) receives its blood supply directly from the pulmonary circulation as all of this blood passes through the coronary circulation
D) receives most of its blood supply during ventricular diastole by means of coronary arteries
E) does not receive blood in any of the ways mentioned above