Question

A heart murmur occurs when there is a defect in _______.

A) the timing of the cardiac cycle
B) the AV node
C) a heart valve
D) the SA node

Answer 1

A heart murmur occurs when there is a defect in a heart valve.

Step-by-step explanation:

The correct answer is C) a heart valve. A heart murmur occurs when there is a defect in one or more of the heart valves. Heart valves play a crucial role in regulating the flow of blood through the heart. When a valve is not functioning properly, it can result in abnormal sounds called heart murmurs.