Which eye structure receives stimuli and sends it to the brain?

Correct option is A

Ans. (a)
Sol. The retina is the light-sensitive layer at the back of the eye. It contains photoreceptor cells (rods and cones) that detect light and convert it into electrical signals, which are then transmitted to the brain via the optic nerve. This is essential for vision.
Explanation of each option:
· (a) Retina – Correct answer. Responsible for receiving visual stimuli and sending signals to the brain.
· (b) Sclera – The white outer layer of the eye that provides protection and structure; not involved in vision processing.
· (c) Lens – Focuses light onto the retina but does not send signals to the brain.
· (d) Iris – Controls the amount of light entering the eye by adjusting pupil size; not involved in signal transmission.