Anatomy of the Eye (assignment)

Clear lens in front of the eye. Transparent covering in front of the eye. Gathers light and focuses it onto the pupil

• sclera

• choroid

• ciliary body

• lens

• cornea

Circular opening in the center of the Iris through which light enters

• cornea

• pupil

• aqueous humor

• retina

• optic nerve

Tough white skin (made of tissue) that covers all the eyeball except the cornea. This protects the eyeball, offers support, and provides an attachment for muscles

• iris

• ciliary body

• choroid

• sclera

• retina

Has blood vessels which nourish surrounding tissues. Has melanocytes (cells that produce melanin). Melanin absorbs the excess light which helps to keep the inside of the eye dark.

• retina

• iris

• ciliary body

• lens

• choroid

Has various muscle fibers that hold the lens in position.

• choroid

• cornea

• ciliary body

• iris

• vitreous humor

Allows us to see objects near and far. Adjusts shape to facilitate focusing (accomodation)

• lens

• aqueous humor

• iris

• sclera

• cornea

Colored part of the eye that is a smooth muscle. This controls the amount of light entering the eye. In dim light, the muscles of this part causes the pupil to dilate. In bright light, the muscles of this part cause the pupil to constrict

• choroid

• iris

• retina

• aqueous humor

• sclera

Fluid between the cornea and the lens that nourishes both the cornea and the lens. This fluid leaves through the veins of the eye and maintains the shape of the front of the eye.

• vitreous humor

• aqueous humor

• sclera

• ciliary body

• lens

Inner wall of the eye that contains photoreceptors (convert images into impulses). This part of the eye contains both cones (light sensitive structures; allows for color discrimination, functions under bright lighting, and gives you sharp/detailed vision) as well as rods (light sensitive structures; functions under dim lighting, and gives you peripheral vision)

• optic nerve

• lens

• retina

• ciliary body

• pupil

Exits the back of your eye and sends impulses from your retina to your brain

• optic nerve

• pupil

• vitreous humor

• sclera

• aqueous humor