Check sibling questions

What is the role of the brain in reflex action?

 

Answer

LABEL THE PARTS AND SHOW THE DIRECTION OF FLOW OF ELECTRICAL SIGNALS - Teachoo.jpg

Reflex action is an immediate or quick action or response .

It does not involve thinking, besides our actions do not feel like they are under our control .

And so, reflex action does not involve the brain

The process of reflex action is like  

  • The stimuli is sensed by the sensory receptors and sensory neurons generate impulses.
  • These impulses reach the spinal cord
  • The relay neuron in the spinal cord passes signals between neurons.
  • The motor neurons pass the signals for response to the organ that needs to respond to stimulus.

The information input also goes on to reach the brain . But it is not involved in reflex action.

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Transcript

LABEL THE PARTS AND SHOW THE DIRECTION OF FLOW OF ELECTRICAL SIGNALS Sensory Neuron Motor Neuron Effector = Muscle in arm Message to brain Spinal cord (CNS)

CA Maninder Singh's photo - Co-founder, Teachoo

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo