Medical Quiz

Eye and Ear Quiz

What part of the eye controls how much light enters the black hole (pupil) in the center of the eye?

A. optic nerve

B. pupil

C. cornea

D. iris

Select your answer:
A  B  C  D  E 


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Other quiz: Beneath the Skin

The main role of your blood is to

A. carry oxygen to the rest of your body

B. carry carbon dioxide back to your lungs

C. carry nutrients to the cells of your body

D. all of the above