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stadie IBI > hudens innervering > Flashcards

hudens innervering Flashcards

1
Q

vanligaste innerveringen hud

A

fria nervändar i epidermis (granulosum)

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2
Q

vad svarar fria nervändar på för stimuli

A

fin berörning
värme
kyla
smärta

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3
Q

vad kallas fria nervändar i en bindvävskapsel

A

korpuskel

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4
Q

Pacinis korpuskel

A

djupare dermis, hypodermis

fingertoppar

axon omges av lameller (schwannceller), yttre delar består av koncentriska lamellae med lymfoid vätska mellan sig

tryck, vibration

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5
Q

Meissner korpuskel

A

under BM i hårlös hud

lågfrekvent berörning: sensibel touch

icke-myeliniserade axon med en cellulär komponent av platta schwannceller

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6
Q

Ruffini korpuskel

A

dermis

stretch, kontinuerlig mekanisk stimuli

bindvävskapsel med vätskefyllt rum + omyeliniserad nerv

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7
Q

merkel korpuskel

A

mekanoreceptor i basalt i epidermis

berörningsreceptor: kontinuerligt tryck

långsam adaptering, man kan känna textyr

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stadie IBI (4 decks)

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