问题
问答题 简答题
在针电极插入及肌肉放松时，正常肌电图上应有什么表现？
答案
参考答案：
针电极插入及肌肉放松时肌电图表现为：
（1）插入电活动：
①一般插入电活动通常持续300毫秒，幅度大于300μV。
②终极噪声（终极电位）幅度低于10～20μV，波宽0.5～1毫秒。
③高频负电位。
④肌痉挛电位。
（2）电静息（肌肉松弛时，无电位波动）。
搜题请搜索小程序“爱下问搜题”
在针电极插入及肌肉放松时，正常肌电图上应有什么表现？
参考答案：
针电极插入及肌肉放松时肌电图表现为：
（1）插入电活动：
①一般插入电活动通常持续300毫秒，幅度大于300μV。
②终极噪声（终极电位）幅度低于10～20μV，波宽0.5～1毫秒。
③高频负电位。
④肌痉挛电位。
（2）电静息（肌肉松弛时，无电位波动）。
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| Once upon a time , there was a child ready to be born. So 1 he asked God, "They tell me you are sending me to 2 , but being so small and helpless, 3 am I going to live there?" " 4 the many angels (天使), I chose the best one for you. She will be waiting for you and will take care of you." God replied. "But here in heaven (天堂), I do 5 else but sing and smile! That's enough for me to be happy." God said, "Your angel will sing and smile for you every day. And you will feel your angel's love and you'll be 6 ." The child said, "And how am I going to be able to understand when people talk to me 7 I don't know the language that men speak?" God told the child, "Your angel will tell you the most beautiful and sweetest words you will ever hear, and with 8 patience (耐心) and care, your angel will teach you 9 . The child said, "I've 10 that on the earth there are bad men, who will protect me?" God said, "Your angel will protect you 11 it means risking her life (冒生命危险)." "But I will always be sad because I will not see you any more." "Your angel will always talk to you about 12 and in face, I will always be next to you." At the moment there was much peace in Heaven, but voices from the earth could already be heard, and the child, in a hurry, asked, "Oh, God, since I am about to 13 now, please tell me my angel's 14 !" "It is not hard to remember," God replied 15 . "You will call your angel Mommy." |
| ( )1. A. every day ( ) 2. A. the earth ( ) 3. A. where ( ) 4. A. Between ( ) 5. A. nothing ( ) 6. A. lonely ( ) 7. A. though ( ) 8. A. no ( ) 9. A. where to go ( )10. A. heard ( )11. A. when ( )12. A. me ( )13. A. die ( )14. A. address ( )15. A. angrily | B. any day B. the moon B. how B. For B. everything B happy B. whether B. little B. how to speak B. remembered B as soon as B. you B. work B. name B. sadly | C. one day C. the country C. why C. Among C. anything C. excited C. after C. much C. what to say C. forgotten C. since C. us C. study C. number C. softly | D. some day D. the sea D. when D. With D. something D. surprised D. if D. some D. Which to choose D. said D. even if D. her D. leave D. job D. shyly |