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Medical Terminology
Chapter 6
| Term | Definition |
|---|---|
| cerumin/o | wax |
| myring/o | eardrum |
| salping/o | tube |
| tympan/o | eardrum |
| -acusis | hearing condition |
| auricle | projected part of the external ear; also called pinna |
| pinna | projected part of the external ear; also called auricle |
| external acoustic meatus | external passage for sounds collected from the auricle to the tympanic membrane |
| cerumen | a waxy substance secreted by glands located throughout the external canal |
| tympanic membrane | eardrum; drum-like structure that receives sound collected in the external acoustic meatus and amplifies it through the middle ear |
| tympanum | eardrum; drum-like structure that receives sound collected in the external acoustic meatus and amplifies it through the middle ear |
| malleus | first of the three auditory ossicles of the middle ear |
| incus | middle of the three auditory ossicles of the middle ear |
| stapes | last of the three auditory ossicles of the middle ear |
| eustachian tube | tube connecting the middle ear to the pharynx (throat) |
| oval window | membrane that covers the opening between the middle ear and internal ear |
| internal ear | intricate, fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation |
| internal ear | sense body movement and position to maintain balance and equilibrium |
| cochlea | coiled tubular structure of the internal ear that contains the spiral organ |
| perilymph | fluid that fills the bony labyrinth of the internal ear |
| endolymph | fluid within the membranous labyrinth of the internal ear |
| spiral organ | structure located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing |
| vestibule | middle part of the internal ear, in front of the semicircular canals and behind the cochlea, that contains the utricle and the saccule; functions to provide body balance and equilibrium |
| utricle | the larger of two sacs within the membranous labyrinth of the vestibule in the internal ear |
| saccule | the smaller of two sacs within the membranous labyrinth of the vestibule in the internal ear |
| otalgia | earache |
| otorrhagia | bleeding from the ear |
| otorrhea | purulent drainage from the ear |
| tinnitus | a ringing or buzzing in the ear; a jingling |
| myringitis | inflammation of the eardrum |
| otitis media | inflammation of the middle ear |
| aerotitis media | inflammation of the middle ear from changes in atmospheric pressure; often occurs with frequent air travel |
| eustachian obstruction | blockage of the auditory (eustachian) tube, usually resulting from infection, as in otitis media |
| otosclerosis | hardening of the bony tissue in the ear |
| acoustic neuroma | benign, but life-threatening tumor of the vestibular division of the vestibulocochlear nerve (cranial nerve VIII) that causes vertigo, tinnitus, and hearing loss |
Created by:
HannahLCobb
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