Ear Terms
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| pinna | outer part of ear
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| middle ear bones | malleus, incus, stapes
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| oval window | where stapes vibrates to cause sound to travel to inner ear
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| semicircular canals | found in inner ear and maintain balance
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| endolymph fluid | found in cochlear canal
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| organ of Corti | made of cells with projected hairs that transmit sound to acoustic nerve
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| otoscopy | direct visualization of the external auditory canal and tympanic membrane with otoscope
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| otosclerosis | slow growth of spongy bone in the otic capsule, most common cause of progressive hearing loss
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| presbycusis | result of aging with the loss of hair cells in the organ of Corti
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| infectious myringitis | inflammation, hemorrhage,and effusion of fluid into the tissue and at end of external canal and eardrum
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| labrynthitis | inflammation of the labrynth of the inner ear causing severe vertigo
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| mastoiditis | bacterial infection and inflammation of mastoid antrum air cells
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| Meniere's disease | labyrinthine dysfunction known to cause violent attacks of severe vertigo lasting from 10 minutes to several hours
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| otitis externa | inflammation of external ear canal
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| otitis media | inflammation of middle ear
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| cerumeolytics | help remove impacted cerumen
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| myringotomy | incision into TM to relieve pain and drain pus from the middle ear
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| myringoplasty | repair of ruptured TM
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| stapedectomy | removal of all or part of the stapes
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| olfactory | refers to nose
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| olfactory epithelium | real organ of smell
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| how smells get to brain | olfactory epithelium to olfactory bulb to olfactory center in brain
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| cilia | tiny hairs in vestibule of nose that filter air
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| nasal meatus | grooves that separate the turbinates
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| turbinates | curved bony structures that warm, filter, and humidify inhaled air
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| root | upper narrow end of nose
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| external nares | two outer openings separated by septum
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| Merkel's disks | tactile corpuscles in epidermis that relay light touch and superficial pressure
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| Meissner's corpuscles | located in corium below epidermis, receive light pressure sensation
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| Pacini's corpuscles | in subcut. layer, transmit heavy pressure
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| Ruffini's corpuscles | in corium, help send temperature info to brain
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| taste buds | receptors for taste nerve fibers located in papillae
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| papillae | small projections on tongue
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