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10 Cards in this Set
- Front
- Back
What is the Tympanum?
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- Oval shaped membrane , that separates
external ear from the middle ear - Aka ear drum and has ossicles attached , transmits sound waves to inner ear |
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What does the Eustachian tube do?
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Equalizes pressure to each side of
tympanum |
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Identify the Cochlea (inner ear) and function?
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- transforms the
vibrations of the cochlear liquids and associated structures into a neural signal (AKA receptors for sound) - These messages are then passed to the auditory nerve and carried up to the brain. |
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Identify C
its function? |
Semicircular Canal
-three fluid-filled bony channels in the inner ear. - They are situated at right angles to each other and provide information about orientation to the brain to help maintain balance/ equilibrium. (sense, posture, balance)
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Identify D
Its function? |
VESTIBULE
- chamber / cavity where stapes is attached to and holds some of the semi-circular fluid |
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Identify B
it's function? |
Vestibulocochlear Nerve
CN 8 |
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identify B
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B- Incus (looks like a tooth) |
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identify all 3 ossicles
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Hammer = Malleus (connected directly to tympanum)
Anvil or tooth = Incus Stirrup = Stapes |
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identify A and B
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A = Pinna ( auricle of ear)
B = External Auditory Canal or Acoustic Auditory Canal |
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what is ampulla?
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a dilated flask-like portion of the semicircular canals of the ear.
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