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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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external ear |
1. auricle (pinna) 2. helix 3. lobe 4. external acoustic meatus |
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auricle (pinna) |
the shell-shaped external part of the ear |
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helix |
the thick rim of the ear |
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lobe |
fleshy lower part of the ear |
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external acoustic meatus |
short tube from the auricle to the eardrum |
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tympanic membrane (eardrum) |
transfers energy to the ossicles; boundary between outer and middle ear |
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middle ear |
1. ossicles 2. pharyngotympanic tube (Eustachian tube) |
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auditory tube (Eustachian tube) |
connects the ear cavity to the throat; equalizes pressure |
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ossicles |
transmit eardrum vibrations to the oval; three smallest bones in the body |
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malleus (hammer) |
ossicle attached to the eardrum; first |
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incus (anvil) |
middle ossicle; second |
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stapes (stirrup) |
ossicle that fits into the oval window; third |
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oval window |
opening from the middle ear to the inner ear |
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round window |
posterior middle ear opening; opens to allow fluid out |
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internal ear |
1. semicircular canals 2. vestibule 3. cochlea |
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semicircular canals |
fluid-filled canals that monitor head movement |
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vestibule |
egg-shaped cavity that monitors movement in respect to gravity |
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vestibular nerve |
balance nerve |
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cochlear nerve |
hearing nerve |
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cochlea |
spiral-shaped organ of hearing |
