【单选题】【消耗次数:1】
维持胸内负压的前提是( )
呼吸道存在一定阻力
胸内压低于大气压
胸膜腔密闭
呼吸肌舒缩
参考答案:
复制
纠错
相关题目
【判断题】 维持胸内负压的前提是胸膜腔密闭。
①  正确
②  错误
【单选题】 维持胸内负压的前提是( )
①  呼吸道存在一定阻力
②  胸内压低于大气压
③  胸膜腔密闭
④  呼吸肌舒缩
【单选题】 平静呼吸时,下列时相中肺内压低于大气压的是()
①  吸气初
②  吸气末
③  呼气初
④  呼气末
⑤  停止呼吸时
【单选题】 维持胸内负压的必要条件是
①  呼吸道阻力
②  胸膜腔密闭
③  呼气肌收缩
④  吸气肌收缩
【单选题】 平静呼吸时,吸气末胸内压
①  等于大气压与胸内压之和
②  高于大气压
③  等于大气压
④  等于肺内压
⑤  低于大气压
【单选题】 肺内压低于大气压出现于
①  呼气时
②  呼气末
③  吸气时
④  吸气末
⑤  胸膜腔内压低于大气压
【单选题】 维持胸膜腔内压的前提条件是
①  呼吸肌舒缩
②  肺的弹性阻力
③  胸廓的弹性阻力
④  气道阻力
⑤  胸膜腔密闭
【单选题】 在下列哪一呼吸时相中,肺内压与大气压相等
①  呼气初与呼气末
②  吸气初与呼气末
③  吸气末与呼气末
④  吸气初与呼气初
⑤  吸气初与吸气末
【单选题】 IOS中心呼吸道阻力是()
①  X5
②  Fres
③  R20
④  R5
⑤  AX
【判断题】 胸膜腔呈负压()
①  正确
②  错误
随机题目
【单选题】 They teach the computer to think and ( ) develop and sharpen their own reasoning abilities.
①  result in
②  result from
③  as a result
④  with result
【单选题】 The song never failed to ( ) his spirits.
①  overcome
②  utilize
③  exercise
④  elevate
【单选题】 Alice had a dream of becoming a biologist at a very young age and her ( ) paid off.
①  possess
②  prevail
③  positive
④  persistence
【单选题】 His CD player is beeping, for the battery is ( ).
①  runnig low
②  failing to
③  lacking of
④  short of
【单选题】 My teachers words ( ) me a lot in my decision making.
①  assured
②  accomplished
③  confronte
④  influenced
【单选题】 I’m thinking of buying a computer. Can you ( ) a good make to me?
①  advise
②  recommend
③  propose
④  suggest
【单选题】 On the first day at work, he was ( ) with a difficult task.
①  focused
②  concentrated
③  confronted
④  possessed
【单选题】 They are encouraged to be brave, independent and to ( )the world on their own or with friends.
①  explorative
②  exploration
③  explorer
④  explore
【单选题】 The authors great work has had a profound ( ) on me.
①  effect
②  assurance
③  confidence
④  evidence
【单选题】 This kind of digital camera is considered the best that has been made ( )in our country.
①  so on
②  so that
③  so far
④  so as