Read the following statements and choose the correct option.

 

I: Atria receive blood from all parts of the body which subsequently flows to ventricles.
II:    Action potential generated at sino-atrial node passes from atria to ventricles.

1. Action mentioned is statement I is dependent on action mentioned in Statement II

2. Action mentioned in statement II is dependent on action mentioned in Statement I

3. Action mentioned in statement I and II are independent of each other.

4. Action mentioned in statement I and II are synchronous.

Subtopic:  Human Heart: Double Circulation | Human Heart: Cardiac Cycle |
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