You hearing this!?
What is the auricle (pinna)
cartilage covered by skin
The membrane across the ear canal that vibrates when sound strikes
Tympanic membrane (eardrum)
What nerve is attached to the inner ear?
Vestibulocochlear (XIII)
The receptors for hearing are found here
The cochlea
Semi-circular canals detect what type of equilibrium?
Dynamic equilibrium
What tunnels into the temporal bone?
The External Auditory Canal
What is the middle ear filled with?
Air
What is the inner ear filled with?
Fluid
Surgically implanted electronic devices that bypass damaged inner ear hair cells to directly stimulate the auditory nerve
Cochlear Inplants
The Saccule & Utricle control what?
Static equilibrium
Modified oil glads in the ear produce what?
Cerumen (ear wax)
Name all three bones in the middle ear
malleus, incus, stapes
What are the three canals oriented in the three spatial planes?
Semi-circular canals
Otitis Media
Common middle ear infection in young children
Ability to balance when moving
Dynamic equilibrium
A problem with getting sound waves to the cochlea is what kind of hearing loss?
Conductive
What are the Eustachian tube's functions
It is the auditory tube and allows inner air pressure to adjust to the external environment
Vibrations pass through the oval window to
The cochlea
The two membrane sacs filled with fluid in the vestibule
Saccule & Utricle
Ability to maintain balance at rest
Static equilibrium
Sensorineural
How do vibrations transmit to the inner ear
The malleus, incus, and stapes have a domino reaction, causing the stapes to vibrate against the oval window
What is the central cavity between the cochlea and the semicircular canals?
What is the spiral organ of Corti?
The receptor organ for hearing located in the cochlea
What are the components for maintaining balance?
Proprioceptors, Vision, Vestibule, Semi-circular canals