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8 Cards in this Set
- Front
- Back
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Otitis Media:
Bulging, red tympanic membrane may indicate ___ infection. More common in younger children because their ___. May cause ___. Can lead to ___. |
-middle ear
-pharyngotympanic tubes have a narrower angle and therefore, drainage from the middle ear cavity to the pharynx is impaired -perforation of tympanic membrane -mastoiditis s. 11 |
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Mastoiditis:
Otitis media can lead to mastoiditis, an inflammation of the ___. Mastoiditis can spread superiorly into the ___. |
-mastoid antrum and air cells
-middle cranial cavity [e.g. *meningitis, if spreads] |
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Pathologic Nystagmus:
Damage to the ___ or its connections with the ___ can cause pathological nystagmus. ___ can cause nystagmus. In vestibular nystagmus, the eyes move ___. |
-vestibular system
-cerebellum -Alcohol and other intoxicants -slowly toward the side of damage and then rapidly snap back |
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Meniere’s Disease:
Recurrent attacks of ___ (3). May be accompanied by ___. Most common in ___ (ages). Attacks may last for a few moments to a number of hours. A consistent feature is ___, an increase in the volume of endolymph. |
-vertigo, hearing loss and tinnitus (ringing in ears)
-nystagmus -4th and 5th decade -endolymphatic hydrops |
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Hearing Loss:
Constant exposure to loud sounds at specific frequencies can damage ___ cells that detect those frequencies ___ cells in humans do not regenerate Vestibulocochlear nerve may be injured at its entrance into the brainstem by a Schwann cell tumor, Schwannoma ___ neuroma May involve ___ nerve and thereby cause a ___ palsy |
-hair
-Hair -Acoustic -facial -facial |
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What nerves innervate the inner and outer surfaces of the tympanic membrane?
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outer – auriculotemporal [branch off mandibular n.] and auricular branch of X
Inner – glossopharyngeal |
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What nerve must be avoided when making an incision into the tympanic membrane and placing the tympanostomy tube?
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Chorda tympani
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If this nerve were damaged, what deficits would it cause?
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Loss of taste from the anterior 2/3rds of the tongue and loss of salivation from the submandibular and sublingual glands
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