【单选题】【消耗次数:1】
CO2 增强 呼吸运动主要是通过剌激
中枢化学感受器
外周化学感受器
延髓呼吸中枢
脑桥呼吸中枢
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相关题目
【单选题】 中枢化学感受器位于
①  大脑皮层
②  延髓腹外侧部
③  脑桥
④  中脑
⑤  下丘脑
【单选题】 中枢化学感受器位于
①  大脑皮层
②  延髓腹外侧部
③  脑桥
④  中脑
⑤  下丘脑
【单选题】 通过兴奋中枢化学感受器增强肺通气的有效刺激是:
①  脑脊液H+浓度升高
②  脑脊液CO2分压升高
③  脑脊液O2分压降低
④  动脉血H+浓度升高
⑤  动脉血O2分压降低
【单选题】 中枢化学感受器最敏感的刺激物是()
①  血液中的CO<sub>2</sub>;
②  脑脊液中的CO<sub>2</sub>;
③  血液中的H<sup>+</sup>;
④  脑脊液中的H<sup>+</sup>;
⑤  血液中的O<sub>2</sub>
【单选题】 对中枢化学感受器刺激作用最强的物质是
①  脑脊液中的CO2
②  脑脊液中的H+
③  脑脊液中的2,3-DPG
④  血液中的CO2
⑤  血液中的H+
【单选题】 动脉血H+浓度升高主要通过外周化学感受器兴奋呼吸的原因是
①  H+难以通过血脑屏障
②  H+对中枢化学感受器有抑制作用
③  中枢化学感受器对H+不敏感
④  脑脊液对H+浓度的缓冲
⑤  以上都不对
【单选题】 动脉血H+浓度升高主要通过外周化学感受器兴奋呼吸的原因是
①  H+难以通过血脑屏障
②  H+对中枢化学感受器有抑制作用
③  中枢化学感受器对H+不敏感
④  脑脊液对H+浓度的缓冲
⑤  以上都不对
【判断题】 颈动脉小球为化学感受器()
①  正确
②  错误
【判断题】 心血管活动的化学感受性反射的感受器主要是颈动脉体和主动脉体化学感受器。
①  正确
②  错误
【单选题】 致密斑是一种化学感受器, 可感受远端小管内滤液中的( )浓度变化
①  K+
②  Ca
③  HCO3ˉ
④  Na+
⑤  Cl-
随机题目
【单选题】 Ive never been to Beijing, but its the place _______.
①  where Id like to visit
②  in which Id like to visit
③  I most want to visit
④  that I want to visit it most
【单选题】 A survey was carried out on the death rate of new born babies in that region,________were surprising.
①  as results
②  which results
③  the results of it
④  the results of which
【单选题】 The hours _______ the children spend in their one-way relationship with television people undoubtedly affect their relationships with real-life people.
①  in which
②  on which
③  when
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【单选题】 New York is famous for its skyscrapers,_______has more than 100 storeys.
①  the highest
②  the highest of that
③  the highest of which
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【单选题】 InIndiamorethanonehundredlanguagesarespoken,______whichonlyfourteenarerecognizedasofficial.
①  of
②  in
③  with
④  within
【单选题】 AlthoughAnneishappywithhersuccess,shewonders_____willhappentoherprivatelife.
①  that
②  what
③  it
④  this
【单选题】 ______ you are leaving tomorrow, we can eat dinner together tonight.
①  For
②  Since
③  Before
④  While
【单选题】 The residents, _____had been damaged by the fire, were given help by the Red Cross.
①  all of their homes
②  all their homes
③  whose all homes
④  all of whose homes
【单选题】 If motorists do not observe the traffic regulations, they will be stopped, ticked, and _______.
①  have to pay a fine
②  to pay a fine
③  fined
④  fired
【单选题】 It is better to die ones feet than _______.
①  living on ones knees
②  live on ones knees
③  on ones knees
④  to live on ones knees