Unit 4, Lectures 3 & 4 (The Eye)

This is the transparent window of the outer tunic with a convex shape to refract light.

• lens

• scelra

• cornea

• pupil

Tags

NGSS.MS-PS4-2

The white, opaque part of the eye which serves as attachment for eye muscles and provides protection.

• sclera

• cornea

• iris

• lens

The thin, vascular layer of the eye that supplies oxygen and nutrients.

• retina

• sclera

• aqueous humor

• choroid coat

The smooth muscle that changes the shape of the lens to help you focus on an image.

• iris

• lens

• ciliary body

• choroid coat

2 sets of smooth muscle that control the amount of light entering the pupil.

• pupil

• iris

• ciliary body

• superior and inferior rectus

Circular opening at the center of the iris that lets light into the eye.

• pupil

• iris

• retina

• cornea

Space between the cornea and iris that contains aqueous humor.

• anterior chamber

• posterior chamber

• vitreous humor

• inner tunic

Space between the iris and lens that contains aqueous humor.

• anterior chamber

• posterior chamber

• vitreous humor

• inner tunic

The fluid that keeps the cornea convex and circulates oxygen and nutrients.

• vitreous humor

• aqueous humor

• blood

• water

The part of the eye that converts light into nerve impulses.

• sclera

• choroid coat

• retina

• optic nerve