A. Describe whether or not infarcted tissue depolarizes

and if electrical vectors are produced.

B. The blood vessels that supply the myocardial cells with a continuous supply of oxygen and nutrients are referred to as the

a. coronary veins.

b. cerebral arteries.

c. coronary arteries.

d. carotid arteries.

C.  Describe why the heart requires its own blood supply.

D. ST segment depression or elevation can be evaluated by comparing the ST segment with the

a. Q wave.

b. TP segment.

c. position of the T wave.

d. QT interval.