Iris

Question 1

Iris

Answer 1

Colorful circular structure that surrounds the pupil, control the amount of light that is allowed to enter the eye through the pupil

Question 2

To decrease the amount of the light entering the eye, the muscles of the iris _______, making the opening of the ppupil smaller

Answer 2

Contract

Question 3

To increase the amount of light entering the eye, the muscles of the iris _____, or dilate, making the opening of th epupil larger

Answer 3

Relax

Question 4

Cornea

Answer 4

Transparent outer surface of the eye covering the iris and the pupil, primary structure focusing light rays entering the eye

Question 5

Pupil

Answer 5

Black circular opening in the center of the iris taht permits light to enter the eye

Question 6

Lens

Answer 6

Clear, flexible, curves structure that focuses images on the retina, contained within a clear capulse located behind the iris and the pupil