HUMAN NUTRITION

Detailed explanation-1: -It helps in the sense of sight by detecting and focussing on the light images. The iris in the eye is the coloured part that controls the size and diameter of the pupil, which directly affects the amount of light entering the eyes. Behind the lens of the eye lies the vitreous body.

Detailed explanation-2: -The nervous system must receive and process information about the world outside in order to react, communicate, and keep the body healthy and safe. Much of this information comes through the sensory organs: the eyes, ears, nose, tongue, and skin.

Detailed explanation-3: -Sight. The third sense is sight (also known as vision), and is created by your brain and a pair of sensory organs-your eyes. Vision is often thought of as the strongest of the senses. That’s because humans tend to rely more on sight, rather than hearing or smell, for information about their environment.