| 单词 | semilunar valve |
| 释义 | semilunar valve in British Englishnoun anatomy either of two crescent-shaped valves, one in the aorta and one in the pulmonary artery, that prevent regurgitation of blood into the heart semilunar valve in American English either of two crescent-shaped heart valves, one, a pulmonary valve, at the junction of the right ventricle and pulmonary artery, the other, an aortic valve, at the junction of the left ventricle and aorta, which keep blood from flowing back into the ventricles Word lists with heart |
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