Question

hi frnds gud morning


trace the sequence of events which occur when a bright light is focused on your eyes ​

Answer 1

Answer:

very good morning your answer is:-

Explanation:

Reflex arch is a neural pathway that does not directly pass into the brain, but synapse in the spinal cord. When bright light is focused on our eyes, this signal do no directly passes into the brain but synapses in the spinal cord which allows us to respond at a much faster rate and this results in immediate closing of our eyes in response to bright light.

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.

THANKS FOR QUESTION

Answer 2

Answer:

When the bright light is focused on your lights the photoreceptors generate electrical impulses and send it to the sensory neurons

they carry the stimuli to the spinal cord which transports the message to the brain

the brain revert back the message by the motor neurons which contract the Pupil.

The sequence of events which occur is as follows:-

Receptors ->sensory neurons -> brain ->motor neurons ->eye muscles-> pupil