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14 Cards in this Set
- Front
- Back
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the membranous laybrinth is lined by epithelium dririved from?
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Ectoderm
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both saccule and utricle contain a specialized sensory region called a
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macula
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the macula of the saccule detects linear acceleration in which direction
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vertical
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the macula of the utricle detects linear acceleration in which direction?
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horizontal
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the surface of the membrane is covered by calcium carbonate crystals called
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otoliths (otoconia)
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how many types of hair cells?
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type I and Type II
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how r the hair cells of the sacule and uricle innervated?
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vestibular division of CN VIII
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each amplulla contains a cone like stucture similar to otolits?
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crista ampullaris
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the gelatinous glycoprotein mass forming the crista and covering the hair cells is called the ?
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cupula
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what is the vestibular apparatus involved in?
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Blanace
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endo lypmh is rich in
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potassum
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perilymph is rich in
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sodium
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scala vestibuli
(2) |
1.perilymph compartment above the vestibular membrane
2. it begins at the oval window |
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scala tympani
(2) |
1.perilymph compartment below the basilar membrane
2. it ends at the round window |
