【单选题】【消耗次数:1】
可兴奋细胞兴奋时,共有的特征是产生( )
收缩
分泌
神经冲动
电位变化
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相关题目
【单选题】 可兴奋细胞兴奋时,共有的特征是产生( )
①  收缩
②  分泌
③  神经冲动
④  电位变化
【单选题】 细胞兴奋时,共有的特征是产生
①  动作电位
②  肌肉收缩
③  腺体分泌
【单选题】 各种可兴奋组织产生兴奋的共同标志是
①  肌肉收缩
②  腺体分泌
③  神经冲动
④  动作电位
⑤  局部电位
【单选题】 以下关于可兴奋细胞动作电位的描述,正确的是
①  动作电位是细胞受刺激时出现的快速而不可逆的电位变化
②  在动作电位的去极相,膜电位由内正外负变为内负外正
③  动作电位的大小不随刺激强度和传导距离而改变
④  动作电位的传导距离随刺激强度的大小而改变
⑤  不同的细胞,动作电位的幅值都相同
【单选题】 可兴奋细胞包括
①  神经细胞、肌细胞
②  肌细胞、腺细胞
③  神经细胞、腺细胞
④  神经细胞、肌细胞、腺细胞
⑤  神经细胞、肌细胞、骨细胞
【单选题】 交感神经兴奋可引起
①  瞳孔缩小
②  逼尿肌收缩
③  肠蠕动增强
④  心率加快
⑤  支气管平滑肌收缩
【单选题】 细胞受刺激而兴奋时,膜内电位负荷减小称作( )
①  极化
②  去极化
③  复极化
④  超极化
【判断题】 同一细胞动作电位传导是通过兴奋部位与未兴奋部位之间产生的—局部电流而实现的。
①  正确
②  错误
【单选题】 下列关于神经细胞兴奋传导的叙述,错误的是()
①  动作电位可沿细胞膜传导到整个细胞
②  传导的方式是通过产生局部电流来刺激未兴奋部位,使之也出现动作电位
③  动作电位的幅度随传导距离增加而衰减
④  传导速度与神经纤维的直径有关
⑤  传导速度与温度有关
【单选题】 交感神经兴奋时
①  瞳孔开大
②  心跳加强,血压下降
③  支气管平滑肌收缩
④  胃肠蠕动减弱
⑤  血管收缩
随机题目
【单选题】 Although only of __________ intelligence, he speaks four languages fluently.
①  average
②  middle
③  mean
④  normal
【单选题】 Computer classes must be __________ to every student of all grades, which will make them have a good command of the modern communication and learning tool.
①  accessible
②  avoidable
③  valuable
④  acceptable
【单选题】 Peter’s mother kept telling him that he should give up smoking, but _____ didn’t help.
①  he
②  which
③  she
④  it
【单选题】 Not until he went through real hardship the love we have for our families is important.
①  had he realized
②  did he realize
③  he realized
④  he had realized
【单选题】 —I knocked over my coffee cup. It went right over _____ keyboard.—You shouldn’t put drinks near _____ computer.
①  the; /
②  the; a
③  a; /
④  a; a
【单选题】 The letters for the boss __________ on his desk but he didnt read them until three days later.
①  were put
②  was put
③  put
④  has put
【单选题】 Someone called me up in the middle of the night, but they hung up _____ I could answer the phone.
①  as
②  since
③  until
④  before
【单选题】 Is the hotel _____ offered you a job _____ you stayed the first time you arrived here?
①  which; where
②  the one; in which
③  where; that
④  the one that; which
【单选题】 —Have you heard about that fire in the market?—Yes, fortunately no one __________.
①  hurt
②  was hurt
③  has hurt
④  had been hurt
【判断题】 It is not so cold as yesterday.
①  正确
②  错误