Anatomy: Unit 3 Test Review

Regulates the opening and closing of the pupil to adjust the total amount of light entering the eye.

• Iris

• Scelera

• Cornea

• Human lens

Problems with the color seeing pigments in certain nerve cells of the eye cones.

• Dyslexia
• Legal Blindness
• Blindness
• Color Blindness

Thin fold of skin that covers and protects the eye.

• Sclera
• Human Lens
• Eyelid
• Optic Nerve

The white portion of the eye (In Humans).

• Pupil
• Sclera
• Dyslexia
• Retina

Cornea is abnormally curved, causes blurry vision because it is unable to focus.

• Temporarily Blind 
• Blindness
• Eye
• Astigmatism

Which layer is a blood vessel-rich layer with a dark brown membrane? 

• Choroid
• Sclera
• Retina
• Cornea

What is the point where there are no photoreceptors and is considered a "blind spot"?

• Optic nerve
• Fovea centralis
• Optic disc
• Lens

What is the innermost layer and most delicate layer of the eyeball where photoreceptors are located?

• Sclera
• Choroid
• Retina
• Cornea

The vitreous humor is a fluid contained in the anterior segment of the eye.

• True
• False

What light sensitive cells are stimulated in dim light?

• rods
• cones