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

Medium

In higher vertebrates,$SA-$node helps in

A
Conduction of blood
B
Initiation of heart beat
C
Opening of tricuspid valve
D
Opening of bicuspid valve

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Class 11 Questions

Class 11

Biology Questions

Chapter

Body Fluids and Circulations

Subtopic

Structure and function of heart

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