Nerve Flashcards

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0
Q

Astrocytter

A

Stjerne formet, stor lys oval central kerne, mange neurofilamenter gfap (glia fibrillær acid protein, type intermediære filamenter)
Protoplasmatisk grå mange korte udløbere
Fribrillær hvid få lange udløbere

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1
Q

Celler i CNs

A

Grå:neuroner

Hvid: Astrocytter, oligodendrocytter, mikroglia, Ependymale

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2
Q

Nissl legemer

A

rER i neuroner

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3
Q

Astrocytter funktion

A

Fodprocesser i bla blod hjerne barriere, danner glykogen lager, mekanisk støtte

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4
Q

Oligodendrocytter funktion

A

Danner myelin omkring axoner i cns

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5
Q

Oligodendrocytter

A

Lille mørk kerne, udløbere ud til axoner, der danner et lag myelin

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6
Q

Shwanske celler funktion og opbygning

A

Snore sig om axoner i pns der skal myeliniseres, perifær kerne

eller samle flere umyeliniserede

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7
Q

Mikroglia

A

Meget små, fagocytere cns makrofag.

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8
Q

Ependymale

A

Kubisk epithel med ciliaer. I ventriklerne, danner plexus chorideus sammen med blodkar.

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9
Q

Satelitceller

A

Danner myelinskeder om soma i ganglioner pns

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10
Q

Neuroner str udseende, typer, organeller

A

4-135 pm lange, runde pyramide, polygonale ofte spidser. Uni, pseudonuni, bi, multi polære. Lys basofil kerne, mørk tydelig nukleolus, masser af mito i axoner, mikrotubuli til transport. sER i terminalerne.

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11
Q

Senetene, muskeltene

A

Musklen kontraktionsgrad, strækreceptor

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12
Q

Motoriske nerver opdeles i

A

Somatisk og vicerale

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