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external structure located on both sides of the head. This structure directs sound waves into the external auditory canal
external auditory canal
short tube that ends at the tympanic membrane. The inner part lies within the temporal bone of the skull and contains the glands that secrete earwax
semitransparent membrane that separates the external auditory canal and the middle ear cavity. The tympanic membrane transmits sound vibrations to the ossicles
connects the middle ear and the pharynx. It equalizes air pressure on both sides of the eardrum
bones of the middle ear that carry sounds vibrations. It is composed of the malleus, incus, and stapes. The stapes connects to the oval window, which transmits the sound vibrations to the cochlea of the inner ear
bony spaces within the temporal bone of the skull. It contains the cochlea, semicircular canals, and vestibule
snail-shaped and contains the organ of hearing. The structure connects to the oval window in the middle ear
semicircular canals and vestibule
contains receptors and endolymph that help the body maintain its sense of balance (equilibrium)
benign tumor within the internal auditory canal growing from the acoustic nerve; may cause hearing loss and may damage structures of the cerebellum as it grows
cystlike mass composed of epithelial cells and cholesterol occurring in the middle ear; may be associated with chronic otitis media
chronic disease of the inner ear characterized by a sensation of spinning motion, ringing in the ear (tinnitus), aural fullness, and fluctuating hearing loss; symptoms are related to a change in volume or composition of fluid within the labyrinth
a sense that either one's own body or the environment is revolving; may indicate inner ear disease
pertaining to the cochlea implant (surgically inserted prosthetic device that uses electrical currents to stimulate the auditory nerve and provide hearing)
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