A person touches a hot pan by accident and their hand automatically moves away. What type of response is this? Describe how the structures involved cause the response. (5 marks)

Reflex action/reflex arc/reflex (allow "involuntary") The stimulus (heat) is detected by temperature receptors in the skin. This causes impulses to travel along a sensory neurone to the spinal cord, due to chemical changes across the synapses. Here they go along a relay neurone, and then are sent via a motor neurone to the effector (an arm muscle in this case). The muscle contracts, moving the hand away and preventing further harm.

AR
Answered by Ariel R. Science tutor

49703 Views

See similar Science GCSE tutors

Related Science GCSE answers

All answers ▸

What two products are produced when a metal and an acid are added together


Describe the electrical conductance system of the heart?


What is crude oil and how is petrol derived from it?


How has the camel [shown, with summarising information] adapted to survive the desert? Briefly explain adaptation by natural selection.


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences