Question

When the heart is at rest or relaxing it is called
A. Diastole
B. Systole
C. Stroke Volume

Answer 1

Answer:

B.. i think if its not right give me a 1 star

Explanation:

im new

Answer 2

Diastole is when the heart muscle relaxes. When the heart relaxes, the chambers of the heart fill with blood, and a person's blood pressure decreases