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  • The reflex action involves  Option: 1 Spinal cord  <div class='qn

The reflex action involves

 

Option: 1

Spinal cord

 


Option: 2

Receptor neuron

 


Option: 3

Effector neuron

 


Option: 4

All of the above

 


Answers (1)

best_answer

Reflex Action & Reflex Arc

 

 

  • We all have experienced a sudden withdrawal of a body part which comes in contact with objects that are extremely hot, cold pointed or animals that are scary or poisonous.

  • The entire process of response to a peripheral nervous stimulation, that occurs involuntarily, i.e., without conscious effort or thought and requires the involvement of a part of the central nervous system is called a reflex action. 

  • The reflex pathway comprises at least one afferent neuron (receptor) and one efferent (effector or excitor) neuron appropriately arranged in a series.

  • The afferent neuron receives a signal from a sensory organ and transmits the impulse via a dorsal nerve root into the CNS (at the level of the spinal cord).

  • The efferent neuron then carries signals from CNS to the effector. 

Hence, the correct answer is option d

Posted by

Gautam harsolia

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