人心脏的左心室连接着(  )。A.肺静脉 B.肺动脉 C.上、下腔静脉 D.主动脉

作者: tihaiku 人气: - 评论: 0
问题 人心脏的左心室连接着(  )。
选项 A.肺静脉 B.肺动脉 C.上、下腔静脉 D.主动脉
答案 D
解析 肺循环:右心室→肺动脉→肺中的毛细血管网→肺静脉→左心房;体循环:左心室→主动脉→各级动脉→身体各处的毛细血管网→各级静脉→上、下腔静脉(体静脉) →右心房。因此本题选D。
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