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Which of the following reduce/s the speed of nerve impulse?
a) sedatives                                          
b) narcotics
c) alcohol                                             
d) all of these

d

What is/are the effects of narcotics and sedatives on the reflexes?
a) speed up                                          
b) slow down
c) normalize                                         
d) all of these

b

Which of the following is/are involuntary function?
a) digestion                                          
b) heart beating
c) breathing                                          
d) all of these

d

Digestion starts from…….
a) mouth                                              
b) oesphagus
c) stomach                                           
d) small intestine

a

Receptors in the Human Body



Photoreceptors are responsible for the perception of…….
a) sound waves                                   
b) light
c) chemicals                                         
d) pressure

b