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16 Cards in this Set
- Front
- Back
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What is the Concha? |
It is a small cavity or bowl in the pinna that leasd directly to the external auditory canal. |
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The EAM courses how? |
Medially from it lateral opening at the pinna to the tympanic membrane/Eardrum. |
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How is the Tympanic Membrane roughly shaped? |
It is ovoid in shape corresponding to the shape of the EAM. |
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The TM is oriented not straight up and down but rather? |
obliquely w/the inferior margin positioned more medially than the upper margin.
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Medially |
is an adverb; means in a medial position- medial means extending toward the middle. |
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The TM of the right ear points towards what hand on the clock? |
1 |
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The TM of the left ear points towards what hand on the clock? |
11 |
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The top of the TM points towards? |
The nose for each ear |
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What four layers are the TM comprised of? |
The epithelial layer The mucosal layer and two fibrous layers which are sandwiched between the epithelial and the mucosal layer |
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Epithelial |
This is latin for outer layer of skin |
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Mucosal |
Adj for mucous membrane |
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The two fibrous layers that are sandwiched between the epithelial and the mucosal layer are: |
A. Blocked B. Cloudy C. Translucent D. None of the above |
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Due to the translucency structures of the two fibrous layers the middle ear can be seen through... |
the TM as shadows or fuzzy objects |
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The TM is referred to as: |
The ear drum |
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How is the TM shaped? |
Like a cone |
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The point of the TM goes in what direction? |
toward the middle ear |
