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Chapter 8 Lesson 6

Biology Vocabulary

QuestionAnswer
Receptor Cell A cell that receives information about the environment and starts nerve impulses to send that information to the brain
Cornea A clear layer of the eye that light passes through
Iris The part of the eye that controls the amount of light that enters
Pupil The black circle in the center of the iris
Retina The back part of the eye where light rays are focused
Optic Nerve A bundle of nerves that carry impulses from the eye to the brain
Eardrum A thin tissue in the middle ear that vibrates when sound waves strike it
Cochlea The organ in the ear that sends impulses to the auditory nerve
Auditory Nerve A bundle of nerves that carry impulses from the ear to the brain
Created by: clhall2
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