Vision 2023 Quizizz

Vision

You eyes respond to the
stimulus of light. They convert
that stimulus into impulses
that your brain interprets,
enabling you to see.

• The Cornea is a clear tissue that covers the front of the eye.

• The pupil is the opening through which light enters the eye.

• The iris is a circular structure that surrounds the pupil and regulates the amount of light enters the eye.

• The lens is a flexible structure that focuses the light.

Multiple Choice

What part of the eye is responsible for letting light enter the eye.

• cornea

• pupil

• iris

• lens

Drag and Drop

The eye is a complex organ that allows you to sense light. The ​

Placeholder

is the opening through which light enters the eye. In bright light, the pupil becomes ​

Placeholder

. In dim light the pupil enlarges and allows ​

Placeholder

light to enter the eye.

Drag these tiles and drop them in the correct blank above

pupil

smaller

more

less

larger

iris

The Nervous System

- The Senses

Vision

Light coming from an object enters your eye and is focused
by the lens. The light produces an upside-down image on
your retina. Receptors in your retina then send impulses to
your cerebrum, which turns the image right-side up.

Open Ended

What part of your brain is responsible for turning the image from your retina back to right side up?

The Nervous System

- The Senses

Vision

If the lens of the eye does not focus light properly on the
retina, vision problems result.

Reorder

Reorder the following steps for seeing an image. Step 1 is on the left and the last step is on the right.

• light bounces off the object and passes through the cornea

• light reaches the pupil which is an opening the light goes through

• The iris adjusts the size of the pupil to let in more or less light

• The light strikes the retina and activates the rods and cones

• The rods and cones send signals down the optic nerve to the brain.

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Edpuzzle

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