Question

unit examinations content
page 4 of 11
question 3
the relaxation phase of the heart is:
a) systole
b) diastole
c) tachycardia
d) bradycardia
e) angiectasis

Explanation:

In cardiology, the relaxation phase of the heart (when the heart chambers fill with blood) is called diastole. Systole is the contraction phase. Tachycardia is fast heart rate, bradycardia is slow heart rate, and angiectasis is dilation of blood vessels. So the correct option is the one with diastole.

Answer:

B. diastole