Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days


Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number


Mon to Sat - 11 AM to 8 PM

CBSE - X - Biology - Control and Coordination


Asked by sweetynam 18th February 2009, 3:41 PM
Answered by Expert


In a reflex arc, when the receptor detects the stimulus, it excites a sensory neuron. The message travels

through the sensory neuron to an interneuron in the central nervous system and then through the

interneuron to a motor neuron. The message travels through the motor neuron to the effector. The effector is stimulated and its reaction is the response. Thus nerve cells (neurons) carry the message from the stimulated receptors to the correct effectors. In nerve cells, impulses travel only from the axon of one neuron to the dendrites of the other neuron. Reflex arcs are made of neurons and hence the impulses flow in one direction only in a reflex arc

Answered by Expert 25th February 2009, 8:06 PM

Rate this answer

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Report an issue
Your answer has been posted successfully!