Statement 1: Atria receive blood from all parts of the body which

subsequently flows to ventricles.

Statement 2: Action potential generated at the sino-atrial node passes from

atria to ventricles.

a. Action mentioned in Statement 1 is dependent on action mentioned

in Statement 2

b. Action mentioned in Statement 2 is dependent on action mentioned

in Statement 1

c. Action mentioned in Statements 1 and 2 is independent of each

other.

d. Action mentioned in Statements 1 and 2 is synchronous

correct option – ( b )

explanation – the generation of action potential at sino – atrial node which passes from atria into the ventricle is dependent on the blood flow from atria to the ventricles .

hence correct answer is – Action mentioned in Statement 2 is dependent on action mentioned

in Statement 1