Outer Ear
Maldevelopment of the external ear canal
What is atresia
If this structure does not function properly the middle ear may fill with fluid and/or mucous, creating both discomfort and hearing loss
What is the eustachian tube
Three symptoms of inner ear disorders
What are hearing loss, vertigo, and tinnitus
Three sense organs of the vestibular system
What are the utricle, saccule, and ampulla
Retrocochlear disorders affect this area of the auditory mechanism
What are the C-VIII nerve (vestibulocochlear) and the central auditory pathways
Maldevelopment of the pinna
What is microtia
A disease that impacts females causing bony growth on the stapes and other ossicles
What is otosclerosis
Disease that spawns episodic attacks of hearing loss, vertigo, and tinnitus
What is Meniere's
Twitching or beating of the eyes due to problems with the VOR
What is nystagmus
The area of the brainstem where C-VIII enters and a common place for tumors to grow
What is the cerebellopontine angle or CPA
Present at birth
What is congenital
May be acute or chronic
What is otitis media
Hazardous levels of noise exposure cause hair cell damage on the basilar membrane in this region
What is 4000Hz or 4KHz
The most common causes of vestibular disorders include
What are aging, trauma, and infection
A disorder of dyssynchronous firing of electrical impulses from the inner hair cells or other areas in the auditory nervous pathways is known as
What is auditory neuropathy or ANSD
Complete blockage of the ear canal causes this type of hearing loss
What is conductive or CHL
A benign tumor that grows in the middle ear space causing hearing loss
What is cholesteatoma
Drugs and chemicals that cause sensorineural hearing loss are called
What is ototoxic
A disorder that causes vertigo due to reduced mobility of otoliths is known as
What is Benign Paroxysmal Positional Vertigo or BPPV
T or F - Retrocochlear hearing loss results in significant difficulty with perception of speech phonemes
What is true
Inflammation of the outer ear
What is otitis externa
Fracture or disarticulation of ossicles
What is ossicular discontinuity
The most common genetic mutation of this protein causes progressive hearing loss
What is Connexin 26
Inflammation of the vestibular organs due to viral infection, causing vertigo
What is labyrinthitis
A disorder of processing auditory information in the presence of normal hearing sensitivity is know as
What is an auditory processing disorder