【单选题】【消耗次数:1】
心脏的正常起搏点是
心房
左、右束支
窦房结
蒲肯野纤维
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相关题目
【单选题】 窦房结作为正常起搏点的主要原因是
①  位于心脏上部
②  动作电位幅度小
③  没有平台期
④  0期除极速度快
⑤  4期自动除极速度最快
【单选题】 窦房结作为正常起搏点的主要原因是
①  位于心脏上部
②  动作电位幅度小
③  没有平台期
④  0期除极速度快
⑤  4期自动除极速度最快
【单选题】 蒲肯野纤维是特化的
①  平滑肌细胞
②  骨骼肌细胞
③  心肌细胞
④  神经胶质细胞
⑤  神经元
【判断题】 浦肯野纤维自律性低于窦房结,是由于其4期自动去极化速度慢。
①  正确
②  错误
【单选题】 心脏的正常起搏点位于
①  窦房结
②  房室结
③  房室束
④  蒲肯野纤维
【单选题】 窦房结的起搏活动是由于
①  K+内流
②  K+递减性外流
③  Na+内流
④  Ca2+内流
⑤  B+C+D
【单选题】 窦房结的起搏活动是由于
①  K+内流
②  K+递减性外流
③  Na+内流
④  Ca2+内流
⑤  B+C+D
【单选题】 家畜心脏的正常起搏点是
①  心室
②  心房
③  窦房结
【单选题】 联系左、右大脑半球的纤维束是
①  内囊
②  胼胝体
③  皮质核束
④  皮质脊髓束
⑤  内侧丘系
【单选题】 心的正常起搏点是
①  窦房结
②  房室结
③  房室束
④  左、右束支
⑤  蒲肯野氏纤维网
随机题目
【单选题】 England is an island country. _______ consists of three principal islands, and _______ climate is generally mild.
①  She;her
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④  It;its
【单选题】 There was so much noise in the classroom that the teacher couldn’t make himself _______.
①  heard
②  hearing
③  to hear
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【单选题】 He will surely finish the job on time _______ he is left to do it in his own way.
①  in that
②  in case
③  as far as
④  so long as
【单选题】 When the girl heard the news, she could do nothing but ______ back home.
①  going
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【单选题】 Due to the fact that she was naturally timid, she shrank from any ____ social and cultural activities.
①  comprehension of
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【单选题】 The shop offers almost everything()ranges from inexpensive to very expensive.
①  that
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【单选题】 I am unhappy because she accepted my invitation _______ .
①  passively
②  extremely
③  undoubtedly
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【单选题】 It’s getting late and I have to leave now.____________
①  So soon! I hope youve enjoyed it.
②  Have a cup of tea.
③  Not at all.
④  How about a cup of coffee?
【单选题】 You can experience a fast internet connection in()the same way as you do in the office.
①  more
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【单选题】 Nothing can prevent him _____ learning Chinese painting.
①  from
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④  in