6.興奮性突觸傳遞時(shí)，突觸后膜產(chǎn)生的電位變化是(      )

A.興奮性突觸后電位                                       B.抑制性突觸后電位

C.動(dòng)作電位                                                     D.超極化電緊張電位

7.不屬于背肌的是(      )

A.斜方肌                                                        B.背闊肌

C.豎脊肌                                                        D.胸鎖乳突肌

8.有關(guān)睪丸的說(shuō)法，錯(cuò)誤的是(      )

A.成對(duì)                                                            B.具有內(nèi)分泌功能

C.具有產(chǎn)生精子功能                                       D.前緣附有附睪

9.左心室的入口是(      )

A.主動(dòng)脈口                                                     B.肺動(dòng)脈口   

C.左房室口                                                     D.右房室口

10.成人脊髓圓錐下端平哪一椎體下緣？(      )

A.第12胸椎                                                   B.第1腰椎    

C.第2腰椎                                                     D.第3腰椎