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?
The three symptoms of sensorineural compromise
What are hearing loss, vertigo, and tinnitus?
Three sense organs of the vestibular system are
What are the saccule, utricle, and ampulla?
Retrocochlear disorders affect this area of the auditory mechanism
What is the vestibulocochlear nerve (C-VIII) and/or central auditory pathways?
Maldevelopment of the pinna
What is microtia?
A disease afflicting females that causes 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 Disease?
Twitching or beating of the eyes due to problems with the VOR is called
What is nystagmus?
This area of the brainstem, where the C-VIII enters, is a common place for benign tumors to grow.
What is the cerebellopontine angle? or CPA
Present at birth
What is congenital?
May be accute or chronic
What is otitis media?
Noise damages the hair cells on the basilar membrane in this region initially.
What is 4000Hz
Disorders of the vestibular system may be due to
What is aging, infection, or trauma?
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 Auditory Neuropathy Syndrome Disorder? or ANSD? or Auditory Dyssynchrony Disorder
Complete blockage of the ear canal causes this type of hearing loss.
What is conductive?
A benign tumor that grows in the middle ear space and causes hearing loss
What is cholesteotoma?
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?
True or False - 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 the 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 that causes vertigo is known as
What is labyrinthitis?
A disorder of processing auditory information in the presence of normal hearing sensitivity is known as
What is an auditory processing disorder?