cutilo za sluh in ravnotezje Flashcards

1
Q

kako je sestavljeno uho

A

zunanje uho
tvorijo uhelj
zunanji sluhovod in bobnic

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2
Q

iz cesa je narejen uhelj

A

iz elasticnega hrustanca ki ga prekriva koza

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3
Q

iz cesa je sestavljen sluhovod

A

iz hrustancnega in kostnega dela sencnice
pokriva ga koza z velikimi zlezam ki izlocajo usesno maslo

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4
Q

mesanica cesa je usesno maslo

A

mascob in vsoka
maze kozo sluhovoda in oblaga dlake s cimer preprecuje vstop tujkam

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5
Q

kaj predstavlja bobnic

A

mejo med zunanjim in srednjim usesom
zapira zunanji sluhovod proti srednjem usesu

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6
Q

kaj povzroci da bobnic zaniha

A

zvocni valovi ki pridejo po sluhovodu do bobnica

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7
Q

kaj sestavlja srednje uho

A

bobnicna votlina
mastoidna votlinica
usesna troblja ali evstalhijeva cev
tri slusne koscice (kladivce, nakovalce, stremence)

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8
Q

kaj omgoca usesna troblja

A

da je zracni tlak enak kot v srednjemu usesu

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9
Q

kaj povezuje srednje uho z zrelom

A

usesna troblja

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10
Q

kaj delajo tri usesne koscice

A

prevajajo tresljanje z bobnica do ovalnega okenca

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11
Q

kaj lezi na meji med srednjim in notranjim usesom

A

okroglo okence

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12
Q

kaj dela okroglo okence

A

zapira vezivna membrana imenovana sekundarni bobnic

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13
Q

kaj tvori notranje uho

A

kosceni in membranski labirint

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14
Q

kje lezi kosceni labirint

A

lezi globoko v sencnici

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15
Q

kaj tvori kosceni labirint

A

preddvor
polz
polkrozni kanal

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16
Q

kje lezi membranski labirint

A

lezi v koscenem labirintu in slednjemu tudi po obliki prilega

17
Q

kaj tvori membranski labirint in iz cesa je sestavljen

A

tvori ga vestibularni labirint sestavljen je iz mesicka, vrecke, in iz treh polkroznih kanalov