Spinal Reflex Arch:
- The nerve pathway involved in a reflex action is called a reflex arch.
- It includes the following 5 parts –
1.Sensory organ: Receptors on the body which receive an external or internal stimulus.
2.Sensory Nerve: Sensory nerve carries impulse from sensory organs to the spinal cord.
3. The nerve centre of spinal cord or Interneurons Centre of actions.
4. Motor nerve: Transmit, impulse away toward the spinal cord.
5.Effector organs: These organs complete their actions with a response to impulses received through a motor nerve.