Outer Ear
This collects high frequency sounds, localizes sound, and is covered by skin (epidermis).
What is the purpose of the pinna?
Benign bony growth in the ear canal, usually resulting from frequent exposure to cold temperatures
These are the 6 major landmarks of the middle ear.
What is the tympanic membrane, malleus, incus, stapes, tensor tympani, and stapedius?
When describing an audiogram, these are the three things that must be included.
What is type, degree, and configuration?
This is the outermost ridge of the pinna.
What is the helix?
This is the external examination of the outer ear.
What is an otoscopy?
This type of TB fracture is more common, usually resulting in conductive or mixed HL
What is a longitudinal fracture?
These are the 3 layers of the tympanic membrane.
What is cutaneous, fibrous, and membranous?
This is the tympanogram of a patient with a perforation or PE tube.
What is a type B audiogram?
This is the ossicle that the tensor tympani is connected to.
What is the malleus?
These are the 3 kinds of congenital malformations of the outer ear.
This pathology is usually accompanied with "Carhart's Notch" on an audiogram.
What is otosclerosis?
These are the ossicles in the middle ear cavity.
On an audiogram, this ear is represented by a blue line and Xs.
What is the left ear?
The major landmarks of this wall of the middle ear are: stapedius muscle, CN VII, aditus, pyramidal eminence, chorda tympani.
What is the posterior wall?
What is the mastoid wall?
These are the frequencies boosted by the external auditory meatus?
What is 3500-4000 Hz?
This is the treatment for Mycotic External Otitis, also known as otomycosis.
What is acidified ear drops and frequent removal of debris?
This hypothesis makes up the majority of the impedance mismatch from the outer to middle ear?
What is the area-ratio hypothesis?
This type of hearing loss occurs when both air and bone conduction are abnormal, and there is an air-bone gap on a audiogram.
What is mixed hearing loss?
This portion of the temporal bone is located deep in the cranium and houses the inner ear.
What is the petrous portion of the temporal bone?
This is the prominent protrusion at the anterior edge of the EAM and serves as a protective flap?
What is the tragus?
This is the complete absence of the ear canal.
What is anotia?
This middle ear phenomenon recovers 6dB.
What is the buckling effect of the tympanic membrane?
Audiograms associated with noise-induced hearing loss usually experience a hearing loss at this frequency.
What is 4000Hz?
This is the lowest sound pressure level to which a person reliably responds at least 50% of the time.
What is a threshold?