CN 8 Flashcards
Where are the auditory cells in the cochlea located
The organ of Corti
Where do auditory signals terminate
Heschl’s gyrus
What is the term used to describe a decrease of loss of hearing
Hypoacusis
What is the term used to describe an increase in intensity of hearing
Hyperacusis
What are the two main types of hearing loss
Conductive
Sensorineuaral
What type of hearing loss is associated with damage to the organ of corti or auditory nerve
Sensorineuaral
What are the common causes of conductive hearing loss
Canal obstruction
Tympanic membrane trauma
Ossicles (trauma or aging)
Fluid in middle ear
What often accompanies vestibular diseases
vertigo
If a patient has nystagmus with no fast component what is it called
Pendular
What is the acronym used to remember the direction of nystagmus in caloric irrigation
COWS
how can you determine the difference between Cervicogenic and vestibular vertigo
have patient swivel in chair, if symptoms are repeated = cervicogenic
have patient rotate head, if symptoms are repeated = vestibular vertigo
What reflex causes a patient to blink when they hear a loud noise that is out of sight
Auditopalpebral reflex
