Which vessels supply oxygenated blood to the heart muscle?
a. coronary arteries
b. cardiac veins
c. vena cava
d. pulmonary arteries
Question 2
Which of the following is NOT a feature of arteriosclerosis?
a. It can impair circulation.
b. It can increase the risk of a blood clot becoming lodged.
c. The walls of the artery become thinner and harder.
d. It can be a precipitating factor for a stroke.