动脉锥，动脉圆锥：哺乳动物心脏内右心室的圆锥状延伸物，从这里产生肺动脉。

A conical extension of the right ventricle in the heart of mammals, from which the pulmonary artery originates.

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动脉锥，动脉圆锥：哺乳动物心脏内右心室的圆锥状延伸物，从这里产生肺动脉。

A conical extension of the right ventricle in the heart of mammals, from which the pulmonary artery originates.

youdao