Eye Labeling

This part of the human eye contains two sets of muscles which control the amount of light entering the eye.

• Sclera

• Iris

• Pupil

• Tear Gland

What is this part of the eye labelled X? It allows light to enter the eye.

• Sclera

• Pupil

• Fovea

• Choroid

What is the function of the Ciliary body?

• It contains ciliary muscles which control the curvature of the lens

• It is pigmented black to prevent internal reflection of light

• It keep the eyeball firm and helps refract light onto the retina

• It is elastic and changes its shape or thickness to refract light onto the retina

When ciliary muscles relax, it ____________

• pulls on the suspensory ligaments

• relaxes its pull on the suspensory ligament

When ciliary muscles contract, it ____________

• pulls on the suspensory ligaments

• relaxes its pull on the suspensory ligament

What is the part of the eye labelled X?

(a)  

What is the part of the eye labelled X?

• Ciliary muscle

• Suspensory ligament

• Choroid

• Retina

The (a)   is the innermost layer of the eyeball. It is the light sensitive layer on which images are formed and it contains photoreceptors.

The ______ is the dome-shaped transparent layer continuous with the sclera. It refracts light rays into the eye.

• Retina

• Cornea

• Lens

The _____ controls movement of the eye.

• Ciliary muscle

• Rectus muscle

• Eyelash

• Sclera