Which of these is the portion of the heartbeat that involves contraction of the heart?
A) cardiac cycle
B) pacemaker
C) diastole
D) systole

Name: Which of these is the portion of the heartbeat that involves contraction of the heart? A) cardiac cycle B) pacemaker C) diastole D) systole
Brand: Quizplus
Rating: 4.9 (34 reviews)

Question

Quizplus · Accepted Answer

Systole refers to the period of the heartbeat during which the heart muscle contracts, pushing blood out of the chambers and into the circulation.

Which of These Is the Portion of the Heartbeat That