Eye Parts Flashcards
Pupil
An opening in the center of the iris through which light enters the eye.
Choroid
The pigmented nutritive layer of the eye.
Retina
Light sensitive layer of the eye; contains rods and cones.
Optic nerve
Carries impulses for vision; purely sensory.
Vitreous humor
A gel-like substance that helps prevent the eyeball from collapsing inward by reinforcing it internally.
Aqueous humor
The watery fluid in the anterior chambers of the eye.
Iris
The pigmented, involuntary muscle that acts as the diaphragm of the eye.
Extrinsic eye muscles
Produces gross eye movements
Sclera
The outermost tunic, protective layer.
Photoreceptors
Rods and cones, respond to light.
Rods and cones
Receptor cells
Ciliary body
Lens is attached to it.
Lens
The elastic, doubly combed structure in the eye that focused light entering the eye.
Cornea
The transparent anterior portion of the eyeball.
