What does the iris do?

a muscle that regulates how much light enters the eye

She is pointing to this structure which will be cut and then what happened?

pointing to the cornea, aqueous humor comes spilling out of the eye and deflates the eye

pointing to the lens, cuts the eye in half and sets it on the table

pointing to the fat/muscles of the eye, she sat the eye in her palm

The hole in the iris gets bigger and smaller because

the iris is a muscle that moves to make the pupil larger/smaller

the pupil can adjust itself to the amount of light coming in

the pupil is a muscle that controls the size of the iris

EYE

Quiz

•

Science

•

7th - 8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS1-8, MS-LS4-2, MS-LS3-1

+1

Standards-aligned

TIFFANY GRAHAM

Used 1K+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part is #1?

sclera

cornea

retina

lens

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part is #2?

iris

cornea

retina

lens

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part is #4?

pupil

iris

cornea

lens

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part is #5?

pupil

iris

cornea

lens

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part is #6?

sclera

cornea

Tapetum

lens

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part is #7?

sclera

optic nerve

cornea

retina

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the optic nerve do?

transmit impulses from retina to brain

helps the eye focus

receives light and sends it to brain

transmits light rays to retina

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EYE

20 questions

Which part is #1?

Which part is #2?

Which part is #4?

Which part is #5?

Which part is #6?

Which part is #7?

What does the optic nerve do?

What does the iris do?

What does the sclera do?

This structure is the back of the eye and it sends images to the optic nerve.

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