The Human Eye Flashcards

Flashcards to review the anatomy and function of the human eye.

Cornea

Clear, convex shaped covering that protects the front of the eye and helps to focus incoming light.

Aqueous Humor

Clear, watery fluid that circulates in the front of the eye, delivering oxygen and nutrients and maintaining constant pressure.

Iris

The colored part of the eye, a ring of smooth muscles that dilate or constrict to change the size of the pupil.

Pupil

Disc shaped hole in the center of the iris that allows light to enter the eye.

Lens

Responsible for focusing light, changes shape using ciliary muscles to focus on objects.

Vitreous Humor

Clear, jelly-like substance that fills the eye, helping it maintain its shape and further focuses the light.

Retina

Thin, light-sensitive tissue lining the back of the eye that receives and processes light signals.

Optic Nerve

Bundle of nerve fibers carrying visual information from the eye to the brain.