The senses

anvil

• One of the auditory ossicles.

• Fluid in the anterior compartment of the eye that maintains the internal pressure and provides nutrients to the iris and cornea.

• A small tunnel in the outer ear that sound waves travel through to reach other parts of the ear. Contains glands that secrete earwax.

aqueous humor

• Three tiny bones—the hammer, anvil, and stirrup—that relay vibrations from the eardrum to the cochlea.

• Fluid in the anterior compartment of the eye that maintains the internal pressure and provides nutrients to the iris and cornea.

• A small tunnel in the outer ear that sound waves travel through to reach other parts of the ear. Contains glands that secrete earwax.

auditory canal

• The shell-shaped part of the outer ear that is visible outside the body.

• Three tiny bones—the hammer, anvil, and stirrup—that relay vibrations from the eardrum to the cochlea.

• A small tunnel in the outer ear that sound waves travel through to reach other parts of the ear. Contains glands that secrete earwax.

auditory ossicles

• Three tiny bones—the hammer, anvil, and stirrup—that relay vibrations from the eardrum to the cochlea.

• Photoreceptors that detect colors of light.

• The shell-shaped part of the outer ear that is visible outside the body.

auricle

• Photoreceptors that detect colors of light.

• The shell-shaped part of the outer ear that is visible outside the body.

• A clear portion of the sclera that covers the iris, pupil, and lens.

cones

• A small window of membrane that stretches across the end of the auditory canal and transfers vibrations from sound waves to the auditory ossicles.

• A clear portion of the sclera that covers the iris, pupil, and lens.

• Photoreceptors that detect colors of light.

cornea

• A clear portion of the sclera that covers the iris, pupil, and lens.

• One of the auditory ossicles.

• A small window of membrane that stretches across the end of the auditory canal and transfers vibrations from sound waves to the auditory ossicles.

eardrum

• One of the auditory ossicles.

• A small window of membrane that stretches across the end of the auditory canal and transfers vibrations from sound waves to the auditory ossicles.

• A muscular structure behind the cornea that contracts and relaxes to adjust the amount of light entering the eye.

hammer

• A muscular structure behind the cornea that contracts and relaxes to adjust the amount of light entering the eye.

• A small window of membrane that stretches across the end of the auditory canal and transfers vibrations from sound waves to the auditory ossicles.

• One of the auditory ossicles.

iris

• A muscular structure behind the cornea that contracts and relaxes to adjust the amount of light entering the eye.

• A small window of membrane that stretches across the end of the auditory canal and transfers vibrations from sound waves to the auditory ossicles.

• One of the auditory ossicles.