Which chambers contract simultaneously?
A)Two atria
B)Right atrium and right ventricle
C)All chambers contract simultaneously.
D)All chambers contract individually.

Question

Quizplus · Accepted Answer

The two atria contract simultaneously, followed by the contraction of the two ventricles. The contraction of the right atrium and the right ventricle is not simultaneous, as there is a slight delay to allow for the filling of the ventricle. All chambers do not contract simultaneously, but rather in a coordinated sequence known as the cardiac cycle.

Which Chambers Contract Simultaneously