The anterior interventricular artery supplies a portion of the heart wall with oxygenated blood. Suppose that blood is flowing through a healthy region of this artery but then flows through a region that is atherosclerotic. What will happen to blood flow when it reaches the atherosclerotic region?
A) Blood velocity will increase.
B) Blood velocity will decrease.
C) The amount of oxygen in the blood will increase.
D) The amount of oxygen in the blood will decrease.

Question

The anterior interventricular artery supplies a portion of the heart wall with oxygenated blood. Suppose that blood is flowing through a healthy region of this artery but then flows through a region that is atherosclerotic. What will happen to blood flow when it reaches the atherosclerotic region?
A) Blood velocity will increase.
B) Blood velocity will decrease.
C) The amount of oxygen in the blood will increase.
D) The amount of oxygen in the blood will decrease.

Quizplus · Accepted Answer

In an atherosclerotic region, the artery is narrowed, which causes an increase in blood velocity due to the principle of continuity and Bernoulli's principle, where fluid speed increases as it passes through a constriction.

The Anterior Interventricular Artery Supplies a Portion of the Heart