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Chapter 15 Section 3

Science Vocabulary

Cornea The clear tissue that covers the front of the eye
Pupil The opening through which light enters the eye
Iris The circular structure that surrounds the pupil the regulates the amount of light entering the eye
Lens A curved piece of glass or other transparent material is used to refract light
Retina The layer of receptor cells at the back of the eye on which an image is focused
Optic Nerve Short, thick nerve that carries signals from the eye to the brain
Eardrum The membrane that separates the outer ear from the middle ear, and that vibrates when sound waves strike it.
Hammer A small bone in the middle ear that transmit vibrations from the eardrum to the anvil; also called "malleus."
Anvil A small bone in the middle ear the transmit vibrations from the hammer to the stirrup, also called the "incus"
Stirrup A small bone in the middle ear that transmit vibrations from the anvil to a membrane of the inner ear; also called the "stapes."
Cochlea A snail-shaped tube in the inner ear that is lined with receptor cells that respond to sound
Created by: BrandonTran