问题 问答题 简答题

浅反射

答案

参考答案:

刺激不同部位的皮肤或黏膜引起的反射称为浅反射。临床上常见的反射有角膜反射、腹壁反射、提睾反射、跖反射等。

(1)角膜反射:嘱被检查者眼向内上注视。检查者用棉签纤维由角膜外缘向内轻触被检查者角膜,正常时该眼睑迅速闭合,成为角膜直接反射。反射弧为三叉神经眼支一桥脑一面神经核。

(2)腹壁反射:被检查者仰卧,双下肢屈曲并拢、放松腹部。用钝针或木签由外向内轻划腹壁。反射作用为该侧腹肌收缩,脐孔略向刺激侧偏移。上中下腹壁反射中枢分为胸椎7~8、8~9、11~12节段。

(3)提睾反射:用钝针或木签由下而上轻划股内侧皮肤,可引起同侧提睾肌收缩、睾丸上提。消失或减弱见于同侧锥体束或生殖股神经损害等。

完形填空
完形填空。
        Here is a picture   1   Mike's family. The man is   2   father. A   3   is behind Mike. She is   4  .   5   teachers. A girl is   6   picture, too. She's Mike's sister, Lucy Brown. Mike and his sister are in the same   7  . But they   8   in the same grade. They   9  father. They are   10  .
( )1. A. on         
( )2. A. Mike        
( )3. A. boy        
( )4. A. his mother    
( )5. A. She's     
( )6. A. in a       
( )7. A. school      
( )8. A. isn't      
( )9. A. look like his    
( )10.A. English      

B. to    
B. Mike's  
B. girl    
B. his father 
B. He's  
B. in       
B. class    
B. am not  
B. look  his      
B. America    

C. of              
C. Mikes          
C. man            
C. his brother       
C. You're      
C. in the          
C. grade          
C. aren't        
C. look like their    
C. China          

D. in                      
D. Mike of                
D. woman                  
D. his sister              
D. They're            
D. on the                  
D. team                    
D. are                  
D. look after their        
D. Chinese                

单项选择题 B1型题