Class 11 Biology Body Fluids and Circulations Blood pressure, ECG

Medium

$QRS$ complex is related to

A
Ventricular contraction or depolarization
B
Auricular contraction
C
Auricular relaxation
D
Cardiac cycle

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Class 11 Questions

Class 11

Biology Questions

Chapter

Body Fluids and Circulations

Subtopic

Blood pressure, ECG

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