Trace the sequence of events which occur in our body when a bright light is focussed on your eyes


#1

When a bright light is focussed on eye, receptor cell receives the message and passes on to sensory neuron, then it goes to brain, brain reverts back the message by motor neuron which contracts the pupil.
Receptor —> Sensory neuron —> Brain —> Motor neuron —> Eye —> Eye muscle contracts.