Question

Murmur sound occurs due to defect in:
A. Heart valves
B. SA node
C. AV node
D. Purkinje fibers.

Answer 1

Hint Body fluids are bodily fluids such as blood, lymph, milk, and saliva that are produced in the body and then circulated or secreted outside the body. The sound of blood flow is referred to as a "murmur." It could, for example, be passing through a faulty heart valve. It's also possible that a condition causes your heart to beat faster, forcing it to handle more blood than usual.

Complete answer: The heart is divided into four chambers by valves that control the amount of blood that enters each chamber at any given time. In your heart, healthy valves also help prevent blood from flowing in the wrong direction.
When a healthy heartbeats, it makes a "lub-dub" sound. When part of the heart contracts and the mitral and tricuspid valves close, the "club" (systolic sound) occurs, and when part of the heart relaxes and the aortic and pulmonic valves close, the "dub" (diastolic sound) occurs. A heart murmur is an extra sound in the heartbeat caused by turbulent blood flow, such as a "whooshing" sound.
Many healthy children develop heart murmurs, which they may outgrow as adults. They can also happen while you're pregnant. Heart murmurs of this type are known as "innocent" murmurs. They are unrelated to medical or cardiovascular conditions and do not necessitate treatment or a lifestyle change.
Heart murmurs are sounds produced by the heart and are indicative of heart valve problems. The stethoscope can pick up these sounds. The type of murmur produced may indicate the type of heart defect present, either inside or outside the heart.

As a result, the correct response is 'heart valves.'

Note: Many children and adults have heart murmurs that aren't harmful and don't require treatment. If another condition, such as high blood pressure, is the root of your problem, your doctor will address it. Heart murmurs are almost always unavoidable. Heart murmurs are stopped before they start if an underlying condition, such as high blood pressure, is treated or if a heart valve infection is avoided.