Question

give functions of the following 1 ciliary muscles 2 cornea 3 iris and pupil 4 retina​..​

Answer 1

1)Ciliary muscles-Ciliary muscle helps in adjusting the focal length of the lens by contraction or relaxing.

2)Cornea-Cornea is the membrane covering the front of the eye that is bulged out and is responsible for the maximum refraction of the light that enters the eye.

3)Iris-Iris forms the coloured part of the eye. It adjusts the size of the pupil, thereby controls the amount of light entering the eye.

Pupil-Pupil controls the amount of light entering the eye

4)Retina-Retina is a canopy of the nerve endings of the optical nerve through which images are converted into electrical impulses and transferred to the brain for realization of the image.