Anatomy of the eye

After light passes through the cornea, it then passes through the ____________.

What provides nutrients and oxygen to the eye and remove waste?

• Cornea

• Aqueous humour

• Pupil

• Lens

True or false: The pupil is physical structure.

• True, it is the black circular part of our eye

• False, it is an opening in the iris but not an physical structure.

When does the pupil dilate (expand)?

• When there is bright light such as on a sunny day

• When there is dim light such as in a dark room

Tags

NGSS.MS-LS1-8

Explain why the pupil contracts (becomes smaller).

• To restrict the amount of light entering the eye

• To allow more light into the eye

• To focus light onto the retina

• To stop waste entering the eye

Tags

NGSS.MS-LS1-8

What shape is the lens?

• Convex (curved outward)

• Concave (curved inwards)

• Flat

• Triangular

The ciliary muscles are attached to the lens. Why do they expand and contract?

• To control the shape of the lens

• To control the amount of light entering the eye

• To focus the lens for up-close and distant vision

• To eliminate waste from the eye

Identify the statements that best describe the vitreous humour.

• Jelly-like substance

• Supplies nutrients to the eye

• Watery fluid

• Maintains the shape of the eyeball

The retina contains photoreceptor cells which ______ and respond to light.

• Detect

• Remove

• Interpret

• See

Tags

NGSS.MS-LS1-8

The eye has a blind spot. Why?

• Because each eye is is damaged in some way

• We all watch too much Netflix and it damages a part of our eye

• The optic nerve connects to the retina and there are no photoreceptors there

• The lens doesn't reflect light onto certain points of the retina

Tags

NGSS.MS-LS4-2