Anatomy of the Eye Flashcards

Flashcards about the anatomy of the eye. Terms and Definitions.

Blind Spot

The place where the optic nerve leaves the retina; each eye has one where there are no light-sensitive cells.

Optic Nerve

The bundle of nerve fibers that carry information from the retina to the brain.

Cornea

A tough, clear covering over the iris and pupil that protects the eye and bends light to make an image on the retina.

Pupil

The dark circle in the center of the iris that lets light into the inner eye.

Aqueous Humor

A clear fluid that helps the cornea keep its rounded shape.

Iris

A muscle that controls how much light enters the eye, suspended between the cornea and lens.

Retina

The layer of light-sensitive cells at the back of the eye that detects images focused by the cornea and lens; connected to the brain by the optic nerve.

Lens

A clear, flexible structure that makes an image on the eye's retina and focuses on objects.

Vitreous Humor

The thick, clear jelly that helps give the eyeball its shape.

Sclera

The thick, tough, white outer covering of the eyeball.

Tapetum

The colorful, shiny material located behind the retina in animals with good night vision; reflects light back through the retina.