1.
iris
Draw a labelled sketch of the human eye. Explain the function of the following
parts of the human eye-
(a) cornea
(b)
(c) pupil
(d)
(e) ciliary muscles
(f) retina
(g) optic nerves
eye lens
Answers
Answer:
This is the labelled figure of a human eye.
Hope it helps!!!
Explanation:
HEY MATE HERE IS YOUR ANSWER
Structure of Human Eye
Structure of Human EyeA human eye is roughly 2.3 cm in diameter and is almost a spherical ball filled with some fluid. It consists of the following parts:
Cornea: The front transparent part of the sclera is called cornea. Light enters the eye through the cornea.Pupil: A small opening in the iris is known as a pupil. Its size is controlled by the help of iris. It controls the amount of light that enters the eye.Lens: Behind the pupil, there is a transparent structure called a lens. By the action of ciliary muscles, it changes its shape to focus light on the retina. It becomes thinner to focus distant objects and becomes thicker to focus nearby objects.Retina: It is a light-sensitive layer that consists of numerous nerve cells. It converts images formed by the lens into electrical impulses. These electrical impulses are then transmitted to the brain through optic nerves.Optic nerves: Optic nerves are of two types. These include cones and rods.