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

Difficult

What causes the first heart sound?

A
Lubb at the end of atrial systole
B
Dubb at the end of atrial systole
C
Lubb at the beginning of ventricular systole
D
Dubb at the beginning of ventricular systole

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Class 11 Questions

Class 11

Biology Questions

Chapter

Body Fluids and Circulation

Subtopic

Structure and function of heart

Similar Questions

Analogy type questions:
$(1)$ Right atrium and right corner : $SA$ node :: Corner of right atrium : .......
$(2)$ First heart sound : $Lubb$ :: Second heart sound : ...........

Medium

Select the mismatched pair from the following.

EasyMHT CET 2024

The right auricle of the mammalian heart receives blood from:

Medium

Average cardiac output is

Medium

The 'dubb' heart sound is produced at the time of closure of:

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