What are the neuron types involved in a simple reflex arc?

  1. sensory neurons2) relay neurons3) motor neuronsA receptor detects the stimulus. An impulse is sent along the sensory neuron to the CNS (spinal cord). It reaches a synapse where electrical energy is used to release chemicals. The chemicals diffuse across the synapse to trigger an impulse in a relay neuron. There is another synapse between the relay neuron and the motor neuron. The motor neuron is connected to the effector organ - it stimulates the organ to produce a response, e.g. muscle contraction.
LW
Answered by Lydia W. Biology tutor

2350 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

How do prokaryotes differ from eukaryotes?


Explain what happens to plant shoots when sunlight only reaches one side of the tip


Why will a plant wilt if it is not watered?


How are different species formed?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning