Class 11 Biology Body Fluids and Circulations Structure and function of heart

Medium

What is the first heart sound?

A
The 'lub' sound at the end of systole
B
The 'lub' sound at the beginning of ventricular systole
C
The 'dup' sound at the end of systole
D
The 'dup' sound at the beginning of ventricular systole

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Class 11 Questions

Class 11

Biology Questions

Chapter

Body Fluids and Circulations

Subtopic

Structure and function of heart

Similar Questions

In which chamber of the heart is more blood present?

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Assertion : $Lub$ is a heart sound which is produced during each cardiac cycle.
Reason : It is associated with the closure of the tricuspid and bicuspid valves.

DifficultAIIMS 2016

The bundle of $HIS$ is a network of which of the following?

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Blood to the heart is brought by the venous system by:

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Which chamber of the heart has the thickest wall?

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