Conditions, substances, etc in nature that trigger the process of sensing them by our body are called

This is the centre for all sensitive activities.

Nerves that bring nerve signals from the sense organs are called

Stimuli from the environment around are received by our body through

A thin layer that covers the front portion of the eye

The layer of the eye that contains lot of blood vessels

Jelly-like fluid is present in this part of the eyeball.

Eye gathers light through a lens and image is formed on

Rods of retina contains a pigment called

The part of the retina that has no photoreceptors