3. what is a murmur?\na. a rumbling or blowing sound that is made by the heart, often by malfunctioning…

3. what is a murmur?\na. a rumbling or blowing sound that is made by the heart, often by malfunctioning heart valves.\nb. a wheezing sound made by lungs, particularly during pneumonia, that may be superimposed on the heart sounds.\nc. a clicking sound made by artificial heart valves, especially when there is a failure in such devices.\nd. a low frequency sound heard as venous blood fills the atria of the heart, which is pronounced during heart attacks.

3. what is a murmur?\na. a rumbling or blowing sound that is made by the heart, often by malfunctioning heart valves.\nb. a wheezing sound made by lungs, particularly during pneumonia, that may be superimposed on the heart sounds.\nc. a clicking sound made by artificial heart valves, especially when there is a failure in such devices.\nd. a low frequency sound heard as venous blood fills the atria of the heart, which is pronounced during heart attacks.

Answer

Brief Explanations:

A heart murmur is an abnormal sound in the heartbeat, often caused by malfunctioning heart - valves. It is a rumbling or blowing sound. Option B refers to lung sounds, option C is about artificial valve clicking, and option D is an incorrect description of a sound related to heart attacks and venous blood filling.

Answer:

A. A rumbling or blowing sound that is made by the heart, often by malfunctioning heart valves.