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Chapter 6
| Term | Definition |
|---|---|
| Middle Ear | Region between external acoustic meatus and internal ear |
| acous/o, audi/o | Hearing |
| Aer/o | Air or Gas |
| Aur/l, ot/o | Ear |
| Cerumin/o | Wax |
| Myring/o, tympan/o | Eardrum |
| Salping/o | Tube |
| -acusis | Hearing condition |
| External Ear | Made up of the auricle (pinna) and the external acoustic meatus. |
| Internal Ear | Inner ear or labyrinth, receives sound vibrations and passes them through intricate, intercommunicating tubes and chambers to the spiral organ within the cochlea. |
| Tympanotomy | An incision into the eardrum |
| Otalgia | Earache |
| Otorrhagia | Bleeding from the ear |
| Tinnitus | A ringing or buzzing in the ear |
| Vertigo | A turning round, dizziness |
| Auditory Tube | Tube connecting the middle ear to the pharynx (throat) |
| Oval Window | Membrane that covers the opening between the middle ear and internal ear |
| Malleus | First of the three auditory ossicles of the middle ear. Also called the hammer |
| Incus | Middle of the three auditory ossicles of the middle ear. Also called the anvil. |
| Stapes | Last of the three auditory ossicles of the middle ear. Also called the stirrup |
| Perilymph | Fluid that fills the bony labyrinth of the internal ear |
| Endolymph | Fluid within the membranous labyrinth of the internal ear |
| Saccule | Smaller of two sacs within the membranous labyrinth of the vestibule in the internal ear |
| Semicircular canals | Three canals within the internal ear that contain specialized receptor cells that generate nerve impulses with body movement |
| Cerumen Impaction | Excessive buildup of wax in the ear that often reduces hearing acuity |
| Myringitis | Inflammation of the eardrum |
| Otitis media | Inflammation of the middle ear |
| Otosclerosis | Hardening of the bony tissue in the ear |
| Labyrinthitis | Inflammation of the internal ear (labyrinth), usually accompanied by vertigo and deafness. |
| Presbyacusis | Hearing impairment in old age |