| A | B |
|---|
| auricle | external structure located on both sides of the head that directs sound waves into the external auditory meatus (pinna) |
| external auditory meatus | short tube that ends at the tympanic membrane that contains the glands that secrete ear wax (canal) |
| tympanic membrane | semitransparent membrane separating the external auditory meatus and the middle ear cavity that transmits sound vibrations to the ossicles (eardrum) |
| eustachian tube | connects the middle ear and the pharynx; equalizes air pressure on both sides of the eardrum |
| ossicles | the malleus (hammer), incus (anvil), and stapes (stirrup) that carry sound vibrations |
| labyrinth | bony spaces within the temporal bone of the skull that contain the cochlea, semicircular canals, and vestibule |
| cochlea | snail-shaped area that contains the organ of hearing & 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, or equilibrium |
| Where are the mastoid bone and cells located? | in the skull bone behind the external auditory meatus |
| audi/o | hearing |
| aur/i, aur/o, ot/o | ear |
| cochle/o | cochlea |
| labyrinth/o | labyrinth |
| mastoid/o | mastoid bone |
| myring/o | tympanic membrane |
| staped/o | stapes |
| tympan/o | tympanic membrane, inner ear |
| vestibule/o | vestibule |
| labyrinthitis | inflammation of the labyrinth |
| mastoiditis | inflammation of the mastoid bone |
| myringitis | inflammation of the tympanic membrane |
| otalgia | pain in the ear |
| otomastoiditis | inflammation of the ear and the mastoid bone |
| otomycosis | abnormal condition of fungus in the ears, usually affecting the external auditory meatus |
| otopyorrhea | discharge of pus from the ear |
| otorrhea | discharge of serous fluid, blood, pus, or cerebrospinal fluid from the ear |
| otosclerosis | hardening of the stapes, causing hearing loss |
| tympanitis | inflammation of the middle ear |
| acoustic neuroma | benign tumor within the auditory canal growing from the acoustic nerve |
| ceruminoma | tumor in the glands that secrete earwax |
| cholesteatoma | cyst-like mass composed of epithelial cells and cholesterol occurring in the middle ear |
| Ménière’s disease | chronic disease of the inner ear characterized by dizziness and ringing in the ear, and hearing loss |
| otitis externa | inflammation of the outer ear |
| otitis media (OM) | inflammation of the middle ear |
| presbycusis | hearing impairment in older age |
| tinnitus | ringing in the ears |
| vertigo | a sense of one's own body or the environment revolving that may indicate inner ear disease |
| subjective vertigo | sense of one's own body revolving |
| objective vertigo | sense of one's environment revolving |
| cochlear implant | a surgically inserted prosthetic device that uses electrical current to stimulate the auditory nerve and provide hearing |
| labyrinthectomy | excision of the labyrinth |
| mastoidectomy | excision of the mastoid bone |
| mastoidotomy | incision into the mastoid bone |
| myringoplasty | surgical repair of the tympanic membrane |
| myringotomy | incision into the tympanic membrane performed to release pus and relieve pressure in the middle ear |
| stapedectomy | excision of the stapes which is replaced with a prosthesis |
| tympanoplasty | surgical repair of the middle ear |
| audiogram | graphic record of hearing |
| audiometer | instrument used to measure hearing |
| audiometry | measurement of hearing |
| otoscope | instrument used for visual examination of the ear |
| otoscopy | visual examination of the ear |
| tympanometer | instrument used to measure inner ear function |
| tympanometry | measurement of the movement of the tympanic membrane |
| audiologist | one who studies and specializes in hearing |
| audiology | study of hearing |
| aural | pertaining to the ear |
| cochlear | pertaining to the cochlea |
| otologist | physician who studies and treats diseases of the ear |
| otology | a branch of medicine that deals with disease of the ear |
| otorhinolaryngologist (ENT) | physician who studies and treats diseases of the ear, nose, and throat |
| vestibular | pertaining to the vestibule |
| vestibulocochlear | pertaining to the vestibule and the cochlea |
