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| 肺动脉瓣 (由前、左、右瓣3个半月形瓣叶构成，附着于肺动脉环。每个瓣叶与肺动脉壁围成肺动脉窦。右心室收缩时,肺动脉瓣开放,右心室的血液射入肺动脉干。右心室舒张时,肺动脉瓣关闭,防止肺动脉干内的血液返流入右心室) | |||
| 肺动脉瓣 | |||
| pulmonary valve: 10 phrases in 4 subjects |
| Anatomy | 3 |
| Nursing | 4 |
| Sports | 1 |
| Surgery | 2 |
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