Question
Biology Question on body fluids and circulation
Atrial systole lasts for _______ in Cardiac Cycle
A
0.1 second
B
0.3 second
C
0.5 second
D
0.7 second
Answer
0.1 second
Explanation
Solution
During atrial systole, the deoxygenated blood from right atrium enters right ventricle and oxygenated blood from left atrium enters the left ventricle through atrioventricular aperture. Atrial systole lasts for 0.1 second.