Cardiac output is a function of the heart rate and
A) Sinoatrial node
B) Electrical impulses
C) Autonomic nervous system
D) Stroke volume
Question 2
The period of contraction of the heart muscle when blood is ejected from the atria into the ventricles, and from the ventricles into the arteries is called
A) Diastole
B) Conductivity
C) Repolarization
D) Systole