Which heart sound is produced by vibrations within the heart chambers or in the major arteries from the back-and-forth flow of blood?
A) S1 and S2
B) S3 and S4
C) Murmur
D) Physiologic splitting

Question

Quizplus · Accepted Answer

Murmurs are the sounds that are produced in the heart chambers or major arteries from the back-and-forth flow of blood.S1 and S2 are normal heart sounds.S1 is the closure of the tricuspid and mitral valves,and S2 is the closure of the pulmonic and aortic valves.S3 is a normal heart sound sometimes heard in children.S4 is rarely heard as a normal heart sound.If it is heard,medical evaluation is required.Physiologic splitting is the distinction of the two sounds in S2,which widens on inspiration.It is a significant normal finding.

Which Heart Sound Is Produced by Vibrations Within the Heart