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10 Cards in this Set
- Front
- Back
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External Ear (outer) |
auricle or pinna, external auditory canal an tympanic membrane, ceruminous glands- cerumen |
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middle ear |
auditory ossicles: malleus, incus and stapes auditory (eustachian) tube |
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Internal (inner) ear |
sometimes called the labyrinth (series of canals) semicircular canals vestibule, cochlea |
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Tensor tympani muscle |
middle ear muscle, connects to malleus and can reduce tympanic membrane vibrations |
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stapedius muscle |
middle ear muscle, connects to stapes and reduces its movement, smallest muscle in the body |
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Bony Labyrinth |
Inner ear, shell of densebone, surrounds and protects membranous labyrinth, filled with perilymph 3 parts: semicircular canals, vestibule, cochlea |
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sound waves |
alternating high and low pressure regions traveling in the same direction |
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Pitch |
the frequency of a sound vibration the higher the frequency of vibration the higher the pitch |
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intensity |
sound or amplitude of the vibration, the larger the intensity the louder the sound |
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auricle |
external auditory canal, tympanic membrane, malleus, incus, stapes- pressure waves move to cochlea- nerve impulses sent to cerebral cortex |
