0
The sclera, also known as the white of the eye, is the opaque (usually white, though certain animals, such as horses and lizards, can have black sclera), fibrous, protective, outer layer of the eye containing collagen and elastic fiber. It is derived from the neural crest. In children, it is thinner and shows some of the underlying pigment, appearing slightly blue. In the elderly, however, fatty deposits on the sclera can make it appear slightly yellow. The sclera forms the posterior five sixths of the connective tissue coat of the globe. It is continuous with the dura mater and the cornea, and maintains the shape of the globe, offering resistance to internal and external forces, and provides an attachment for the extraocular muscle insertions. The sclera is perforated by plenty of nerves and vessels passing through the posterior scleral foramen, the hole that is formed by the optic nerve. At the optic disk the outer two-thirds of the sclera continues with the dura mater (outer layer)
What else can I help you with?
What fills in the eyeball and maintains its shape?
The eyeball is filled with a gel-like substance called vitreous humor. This clear, jelly-like fluid helps maintain the shape of the eyeball and provides support to the retina at the back of the eye.
Is the conjunctiva the mucous membrane that lines the eyelids and is reflected over the anterior surface of the eyeball?
Yes, the conjunctiva is a thin, transparent mucous membrane that lines the inner surface of the eyelids and covers the white part of the eyeball. It helps protect and lubricate the eye.
Why is the eyeball white?
The white part of eyeball is called Sclera, and is white because sclera forms the posterior five sixths of the connective tissue coat of the globe. It is continuous with the dura mater and the cornea, and maintains the shape of the globe, offering resistance to internal and external forces, and provides an attachment for the extraocular muscle insertions. The sclera is perforated by plenty of nerves and vessels passing through the posterior scleral foramen. At the optic disk, two-thirds of the sclera continues with the dural sheath, the other third with some choroidal tissue forms a plate (lamina cribrosa) across the optic nerve with perforations through which the optic fibers (fasciculi). Which is white in color.. A slight yellow sclera means depositions of fatty stuff in the sclera. hope that helps.. http://bit.ly/feM5
In which part of the eyeball does light rays enter?
Light rays enter the eyeball through the cornea, the clear outer covering of the eye.
What is the opague middle layer of the eyeball?
The opaque middle layer of the eyeball is called the choroid. It is rich in blood vessels and helps to supply nutrients and oxygen to the retina, which is the light-sensitive layer at the back of the eye.
What the white part of an eyeball called?
Sclera
The white part of the eye is called?
The white of the eye is called the Sclera.
What is the color part of the eyeball called?
The Iris.
What is the sclera and where is it located?
It's the white part of the eyeball.
White part of the eyeball?
sclera.outer most layer of eye ball.it is the tough layer. it provides firmness to eyeball.
What is the thick and tough and white outer covering of the eyeball called?
Schlera
What prevents the eyeball from collapsing?
The eyeball is filled with a gel-like substance called vitreous humor that helps maintain its shape and structure. Additionally, the pressure inside the eye, known as intraocular pressure, also plays a role in preventing the eyeball from collapsing. The external layers of the eye, including the sclera (white part) and cornea, provide further support to keep the eyeball intact.
What is the outer layer of the eyeball?
The outer layer of the eyeball is called the sclera. It is a tough, white, fibrous tissue that helps to maintain the shape of the eye and protect the delicate structures inside.
Is your eyeball part of your brain?
No
What is the correct order of the layers of the eyeball from the outside to the inside?
The correct order of the layers of the eyeball from the outside to the inside is the sclera (white part), choroid, retina (consisting of the outer pigmented layer and the inner neural layer).
What do you call the yellow part and the white part?
Well, sweetheart, the yellow part is called the yolk, and the white part is called the egg white. It's as simple as that. No need to complicate things, darling.
What the white part of the egg called?
The white part of an egg is called the (Egg white). It's also called albumen.
