How We See and Hear

Name structure A

• Pupil

• Iris

• Cornea

• Retina

Name Structure B

• Lens

• Pupil

• Sclera

• Cornea

Name structure G

• Lens

• Pupil

• Optic Nerve

• Ciliary Muscles

What structure is responsible for carrying sensory impulses from the eye to the brain?

• Retina

• Iris

• Optic Nerve

• Rods & Cones

What will happen to your pupils if you are in a really bright room?

• They will contract

• They will expand

• They will burst into flames

• They will stay the same size

What structure of the eye controls the size of the pupils?

• Ciliary Muscles

• Iris

• Lens

• Retina

What is the function of the Lens?

• Lining of the back of the eye that contains light receptor cells.

• Regulates how much light enters the eye

• Tough, transparent, protective coating that bends light as it enters the eye

• Focuses light onto the retina

What happens to your eyes if you are in a dark room?

• Your Iris will narrow to allow more light in

• Your pupils will widen to let in more light

• Your pupils will narrow to let in more light

Identify structure D

• Retina

• Optic Nerve

• Sclera

• Lens

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the_________.

• outer ear and ear canal
• inner ear
• tiny hairs
• three small bones in the middle ear

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