Explain heart sounds. | Class 11 Biology Chapter Body Fluids and Circulation, Body Fluids and Circulation NCERT Solutions

Question: Explain heart sounds.

Answer:

Heart sounds are noises generated by the closing and opening of the heart valves. In a healthy individual, there are two normal heart sounds called lub and dub. Lub is the first heart sound. It is associated with the closure of the tricuspid and bicuspid valves at the beginning of systole. The second heart sound dub is associated with the closure of the semilunar valves at the beginning of diastole.

These sounds provide important information about the condition and working of the heart.

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 13: Explain heart sounds.....

Explain heart sounds. | Class 11 Biology Chapter Body Fluids and Circulation, Body Fluids and Circulation NCERT Solutions

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