Term
| What are the three divisions of the ear? |
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Definition
| external, middle, and internal |
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Term
| What is the small lip-like structure of the external ear? |
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Definition
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Term
| What is the name of the opening of the external ear? |
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Definition
| The external acoustic meatus |
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Term
| What is another name for the eardrum? |
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Definition
|
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Term
| What is the name of the air containing cavity between the external and internal ear portions? |
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Definition
|
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Term
| What are the three main parts of the inner ear? |
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Definition
| the tympanic membrane, auditory ossicles, and tympanic cavity |
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Term
| What are the two division of the tympanic cavity? |
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Definition
| the tympanic cavity proper and the epitmpanic recess |
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Term
| What is the tympanic membrane attached to? |
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Definition
|
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Term
| How does the tympanic cavity communicate anteriorly with the nasopharynx? |
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Definition
|
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Term
| What is the purpose of the eustachian tube? |
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Definition
| serves to equalize pressure within the middle ear to the outside atmospheric pressure through the nasopharynx |
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Term
| What is the name of the opening between the epitympanic recess and tympanic cavity proper? |
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Definition
|
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Term
| What is the thin plate of bone that forms the roof of the antrum, aditus, and the attic? |
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Definition
|
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Term
| What are the auditory ossicles? |
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Definition
| the malleus, incus, and stapes |
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Term
| What is the purpose of the auditory ossicles? |
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Definition
| transmit sound vibrations from the tympanic membrane to the oval window |
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Term
| Which of the auditory ossicles first picks up vibrations? |
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Definition
|
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Term
| What is another name for the malleus? |
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Definition
|
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Term
| What is another name for the incus? |
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Definition
|
|
Term
| what is another name for the stapes? |
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Definition
|
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Term
| What does the head of the malleus articulate with? |
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Definition
|
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Term
| Which is the smallest of the auditory ossicles? |
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Definition
|
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Term
| What does the foot plate of the stapes attach to? |
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Definition
|
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Term
| What are the two main parts of the inner ear? |
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Definition
| osseous labyrinth and membranous labyrinth |
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Term
| What are the three divisions of the osseous (bony) labyrinth? |
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Definition
| the cochlea, vestibule, and the semicircular canals |
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Term
| What do the semicircular canals relate to? |
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Definition
| the sense of direction or equilibrium |
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Term
| What does the cochlea relate to? |
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Definition
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