Question

Define iris......... ​

Answer 1

Iris:-

The iris is made of connective tissue, smooth muscle fibers, and pigments that give the iris its color. The pigments in the iris are made of melanin (the same pigment that gives skin its color) and lipochrome. The amount of pigment in the eye creates eye color.Together with the pupil, the iris is responsible for regulating the amount of light that gets into the eye. The muscular iris moves to shrink the pupil if there is too much light and widen it if there is not enough. This is an involuntary function, controlled by the brain.