中动脉

例句：

1. 1. The heart's blood flow is facilitated by the circulatory system, which includes the pulmonary and systemic arteries.
   心脏的血流是通过循环系统来促进的，该系统包括肺动脉和主动脉。
2. 2. The surgeon carefully dissected the tissue to expose the central artery.
   外科医生小心地解剖组织以暴露中央动脉。
3. 3. The central artery connects the heart to the lungs, carrying oxygenated blood back to the body.
   中央动脉将心脏与肺部连接起来，携带氧气丰富的血液返回身体。