Chapter 7: EARS

• external portion of ear that directs sound waves?

  auricle
• earwax is known as?

  cerumen
• membrane that vibrates to transmit soundwaves to ossicles?

  tympanic membrane
• small interconnecting cavities in mastoid process of temporal bone?

  mastoid cells
• canal that connects middle ear to pharynx?

  Eustachian tube
• auditory ossicles that transmit sound waves?

  malleus, incus, stapes
• largest auditory ossicle?

  malleus
• made up of semicircular canals, vestibule, and cochlea?

  labyrinth
• organ that contains organ of hearing?

  cochlea
• organ of hearing?

  organ of corti
• vestibule?

  anatomic chamber
• three bony tubes in labyrinth that assist in maintaining balance?

  semicircular canals
• CNVIII: vestibulocochlear nerve?

  cochlear (Hearing) and vestibular (balance)
• cf for tympanic membrane?

  myring/o
• cf for ear?

  ot/o
• meato-?

  passage
• meaning hearing suffixes?

  -acousis or -acusis
• surgical opening?

  -stomy
• otic?

  pertaining to ear
• acoustic neuroma?

  tumor on vestibulocochlear nerve
• cerumen impaction?

  excessive buildup of wax
• cholesteatoma?

  growth of skin cells in the middle ear into the bone
• conductive hearing loss?

  hearing loss due to a lesion in external auditory canal
• dysacusis?

  difficulty processing sound
• meniere disease?

  fluid accumulation in labyrinth causing dizziness, hearing loss, and pressure in ear
• otalgia?

  pain in the ear
• (OE) otitis externa?

  swimmers ear; inflammation of external auditory canal
• otitis media?

  Middle ear infection
• otomycosis?

  fungal infection in ear
• otopyorrhea?

  discharge of pus from ear
• otosclerosis?

  hardening of ossicles
• sensorineural hearing loss?

  hearing loss caused by damage to inner ear
• tinnitus?

  Ringing in the ears
• vertigo?


  spinning sensation
• audiogram?


  record of hearing
• audiometry?


  measurement of hearing
• decibel?

  unit for expressing intensity of sound
• electronystagmography?

  recording of eye mvmts in response to electrical impulses used to diagnose balance problems
• hertz?

  unit of measure of pitch or frequency
• tympanogram?

  record of middle ear function