CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Define the reflex arc and state its components.


Open in App
Solution

Reflex arc:

It is a shortest pathway for an impulse to travel from the receptor organ via central nervous system to the effector.

Components of the reflex arc:

  1. It includes one sensory neuron which transmits the sensory impulses from the receptors to the central nervous system.
  2. The sensory impulses are integrated in the central nervous system.
  3. The central nervous system transmits the motor information to the effector via the motor neurons.
  4. The effector produces the desired response to the stimulus.

Stimulus→ Receptor(through sensory neurons)→ brain or spinal cord→ (through motor neuron)effector → response.

Hence, reflex arc is the pathway of an impulse to the effector via the central nervous system which includes a receptor, a sensory neuron, a motor neuron, brain and spinal cord and an effector.


flag
Suggest Corrections
thumbs-up
122
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Reflex action
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon