Parts Of The Eyeball

The white part of the eye that one sees when looking at oneself in the mirror is the front part of the sclera. Eye Parts and Their Functions.

A Diagram Showing The Parts Of The Eye Including The Cornea Lens Iris And Ciliary Muscle At The Front Of The Eye Facts Human Eye Diagram Diagram Of The Eye

The wall of the eyeball is made up of three layers fibrous outer vascularmuscular middle and sensorineural inner layers.

Parts of the eyeball. The transparent circular part of the front of the eyeball. This is a smooth white layer on the outside but the inside is brown and contains grooves that help the tendons of the eye attach properly. Parts of the eye.

The optic nerve basically connects the eye to the brain. The sclera provides structure and safety for the inner workings of the eye but is also flexible so that the eye can move to seek out objects as necessary. Our eyes are highly specialized organs that take in the light reflected off our surroundings and transform it into electrical impulses to send to the brain.

It is the transparent anterior or front part of our eye which covers the pupil and the iris. The lens is a clear part of the eye behind the iris that helps to focus. The interior of the eyeball is the inner side and the exterior is the outer side.

It is made up of fibrous tissues and provides protection to the inner parts of the eye. The constricting muscle is located on the iris inner smaller circle-circumference. This is the tissue that is commonly called the white of the eye.

However the sclera a tough leather-like tissue also extends around the eye. Main Parts of the Human Eye Sclera. The function of the cornea is to allow light to pass and ensure it reaches the entire eye so it functions properly.

The retina acts like an electronic image sensor of a digital camera converting optical images into electronic signals. The cornea contains no blood vessels and is extremely sensitive to pain. A thin layer of tissue that covers the entire front of your eye except for the cornea.

The cornea is the outer layer covering of the eye. The Eye - Science Quiz. In this article we shall consider the anatomy of the eyeball in detail and its clinical correlations.

The main function is to refract the light along with the lens. These muscles move the eye up and down side to side and rotate the eye. The front part is also called the anterior segment of the eye.

This is a smooth white layer on the outside but the inside is brown and contains grooves that help the tendons of the eye attach properly. The protrusion of the eyeballsproptosisin exophthalmic goitre is caused by the collection of fluid in the orbital fatty tissue. Regulates the amount of light that enters the eye.

The sclera the tough protective outer shell of the eyeball is composed of dense fibrous tissue that covers four-fifths of the eyeball and provides attachments for the muscles that move the eye. 2015 WebMD LLC. There are many other layers of cornea that provide more protection.

Here are the main Eye Parts of human eye by which a human can see around himself. The sclera provides structure and safety for the inner workings of the eye but is also flexible so that the eye can move to seek out objects as necessary. Just like an eggshell surrounds an egg and gives an egg its shape the sclera surrounds the eye and gives the eye its shape.

The white of your eye. This is the white area which you can see in the eye. This is a strong layer of tissue that covers nearly the entire surface of the eyeball.

The eye sits in a protective bony socket called the orbit. The anatomy of the eye is fascinating and this quiz game will help you memorize the 12 parts of the eye with ease. The sclera is the white part of the eye that surrounds the cornea.

Diagram of the different layers of the eyeball. Six extraocular muscles in the orbit are attached to the eye. It refracts the light entering the eye onto the lens which then focuses it onto the retina.

The area that is around the Iris lens and pupil. The extraocular muscles are attached to the white part of the eye called the sclera. The cornea is the clear outer part of the eyes focusing system located at the front of the eye.

This layer is made up of the sclera and cornea. The plexiform layers contain the connections between cells in the retina. Just behind the iris.

The dome-shaped layer protects human eye from elements against entering in the inner parts of the eye. Anatomically the eyeball can be divided into three parts the fibrous vascular and inner layers. This anterior surface projects as the dilator muscles.

Light enters our eyes through the pupil then passes through a lens and the fluid-filled vitreous. The iris is the colored part of the eye that surrounds the pupil. The sclera is itself covered anteriorly by the conjunctiva a transparent mucous membrane that prevents the eye from drying out.

Light focused by the cornea and crystalline lens and limited by the iris and pupil then reaches the retina the light-sensitive inner lining of the back of the eye. The cornea is a layer that covers the eyes and is the first part of the eye that comes in contact with the light. The eyeball and its functional muscles are surrounded by a layer of orbital fat that acts much like a cushion permitting a smooth rotation of the eyeball about a virtually fixed point the centre of rotation.

The nuclear layers contain cell bodies. The outer fibrous layer maintains the shape of the eyeball and protects more fragile internal structure. A thin layer called the conjunctiva sits on top of this.

The iris controls widening and narrowing dilation and constriction of the pupil. Parts of the Eye Outside the Eyeball. It is the pigmented coloured portion of the eye visible externally.

The front visible part of the eye is made up of the whitish sclera a coloured iris and the pupil. The back surface is covered by a heavily pigmented epithelial layer that is two cells thick the iris pigment epithelium but the front surface has no epithelium.

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