Question

When we touch a hot plate unknowingly, then this heat is sensed by a receptor P present in our fingers. The receptor triggers an impulse in neuron Q which transmits the message to an organ R which is a part of the central nervous system. Here the impulse is passed on to a neuron S which in turn passes it to a yet another neuron T. The neuron T passes the impulse to a tissue U in our arm. The tissue U then contracts and pulls our hand away from the hot plate.​ ​
(b) What is (i) neuron S, and (ii) neuron T?​

Answer 1

Answer​: ​

• Neuron S – Relay neuron.​
• Neuron T- Motor neuron.​