Describe the steps in a reflex arc.

This question was made using AQA specifications.
The reflex arc is a series of events connecting a stimulus to a response. The stimulus, for example a hand touching a hot pan, stimulates the receptor, which could be the sensory receptors in the fingertips. This information travels along a sensory neurone to the coordinator, for example the grey matter of spinal cord. The relay neurone sends information to the relevant motor neurone, which in this scenario stimulates the biceps to contract and withdraw the hand from the potentially harmful hot pan stimulus. The relay neurone also sends messages to the brain so that it is aware of the action taking place.

Answered by Frances A. Biology tutor

3468 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What are the products of respiration?


How does a vaccine work?


What is a stem cell?


How are plants adapted to survive in dry conditions?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences