BI-1189
The heart
Biology · Secondary 3 · Hard · The heart
During ventricular systole, the pressure in the left ventricle is higher than in the left atrium but also higher than in the aorta. What is the state of the left atrio‑ventricular (bicuspid) valve and the semi‑lunar valve in the aorta?
- Bicuspid valve closed, semi‑lunar valve open.
- Bicuspid valve open, semi‑lunar valve closed.
- Both valves open.
- Both valves closed.
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