Ncert Exercises & Solutions

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.