In atrial systole, the atrium contracts, pushing blood into the relaxed ventricle through open AV valves while the aortic valve is closed.
During atrial systole, the atrium contracts while the ventricle is relaxed, pushing blood from the atrium to the ventricle through open AV valves, with the aortic valve closed.
| Front | atrial systole - chambers, blood flow, valves |
|---|---|
| Back | atrium contracts, ventricle relaxed, atrium to ventricle, AV open, aortic closed |
Tags: 6_2_blood_system
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