【单选题】【消耗次数：1】
交感和副交感神经节前纤维释放的递质是
①
肾上腺素
②
去甲肾上腺素
③
乙酰胆碱
④
肾上腺素和去甲肾上腺素
⑤
乙酰胆碱和去甲肾上腺素
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相关题目
【单选题】
对肾上腺素和去甲肾上腺素的描述，错误的是
①
肾上腺素使皮肤、肾脏、胃肠等内脏血管收缩
②
去甲肾上腺素引起骼肌、肝、冠脉血管舒张
③
去甲肾上腺素引起皮肤、肾脏、胃肠等内脏血管收缩
④
肾上腺素的主要作用是加强心脏活动，对血管阻力影响较小
⑤
肾上腺素引起骼肌、肝、冠脉血管舒张
【单选题】
肾上腺素和去甲肾上腺素对心血管的效应是（）
①
两者的升压效应相同
②
两者引起的心率变化相同
③
小剂量的肾上腺素使骨骼肌微动脉舒张
④
去甲肾上腺素使胃肠道微动脉舒张
⑤
在完整机体中，注射去甲肾上腺素后引起血压升高，心率加快
【单选题】
41.静滴去甲肾上腺素发生外漏，最佳的处理方式是：( )
①
静脉注射酚妥拉明
②
皮下浸润注射酚妥拉明
③
肌内注射酚妥拉明
④
皮下注射β受体阻断药
⑤
肌内注射β受体阻断药
随机题目
【单选题】
_______ the look on his face, he doesn’t t quite understand what the speaker is saying.
①
Judge by
②
Judging by
③
To judge by
④
To be judged by
【单选题】
It is reported that a (n)________ of accidents has occurred at that crossroads.
①
series
②
lot
③
number
④
amount
【单选题】
The popularity of the film shows that the reviewers’ fears were completely _____.
①
unjustified
②
unjust
③
misguided
④
unaccepted
【单选题】
They had a/an ____ agreement not to raise the touchy subject.
①
obvious
②
complacent
③
implicit
④
explicit
【单选题】
The workers in the factory stopped working in_____ against their foreman using bad language.
①
protest
②
threat
③
conflict
④
criticism
【单选题】
---When do you wish to visit Canada?---- _____________I am settled, I’ll go there.
①
As
②
Since
③
Once
④
While
【单选题】
Do you anticipate ______ any real problem in getting support?
①
there being
②
there to be
③
there’s being
④
there be