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21 Cards in this Set

  • Front
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Auricle

Visible part or ear with elastic cartilage

External acoustic meatus

Ear canal

Tympanic membrane

Eardrum, vibrates when sound waves hit it

Auditory ossicles

Malleus, incus, stapes

Malleus

Hammer in shape, closest to tympanic membrane

Incus

Anvil, middle ossicle

Stapes

Saddle, articulate, no fusion

Three bones

Malleus hits incus hits stapes

Oval window

Bag of fluid, stapes hits

Cochlea

Snail, cochlear duct, fluid touches nerve cells to transmit to brain

Vestibule

Part between snail and loops, contains membrane parts

Semicircular canal

Big loops, semicircular ducts

Otitis media

Infection of middle ear

Sound wave to nerve

Vibrate tympanic membrane, waves to oval window where stamus hits, fluid in vestibule and semicircular canals, to cochlea, hairs distorted, transmit cochlear branch CNVII

Pitch

Frequency of vibration, 20-20,000 hertz

Equilibrium

Awareness and monitoring of head position, monitored by vestibular apparatus, static, linear, and angular

Static equilibrium

Know position

Angular equilibrium

Spinning

Linear equilibrium

Fwd and backward motion

Vertigo

Virus, irritation of nerves off of jelly like substance

Throwing up

Response from medulla