Muskler Flashcards

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0
Q

Fibertyper

A
Røde  ⬆️myoglobin
Type 1a langsomme udholdende
Hvide ⬇️ ️myoglobin
Type 2a hurtigere udholdende
Type 2b hurtigt med udtrættes
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1
Q

Opbygning af skeletmusk

A

Fibril ➡️Celle ➡️ endomysium ➡️ fasikler ➡️ perimysium ➡️ muskelen ➡️ fascien

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2
Q

Hjerte str

A

Optil 120 pm lange

Dia 20-30 pm

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3
Q

Skelet ultrastruktur

A

Sacrlemma Trilaminær, dystofin på indvendige side

SR om hver fibril, 2 sammen med 1 t tubuli triade over a og i bånd

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4
Q

Hjerte ultrastruktur

A

Sacrlemma fokale adhæsioner, desmosomer, gapjuntions
SR t tub større end skelet og lokaliseret ved z skiverne
Myofibril aktin myosin

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5
Q

Tropomodulin

A

Forsegler aktins % ende

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6
Q

Tropomyosin

A

imellem aktins furer

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7
Q

Troponin

A

3 dele, c, i og t. For enden af hver tropomyosin

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8
Q

Myosin

A

4 lette kæder, 2 tunge. Stavformet alfa helix med de to tunge dele, ved enden adskilles de og bliver til et hoved hver, hvortil 2 lette kæder er knyttet, en essentiel og en strukturel. Myosin 2 har 2 hoveder

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9
Q

Skelet str

A

Så lange som muskel, dia op til 100

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10
Q

Glat str

A

Længde 500, dia 10

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11
Q

Myosintyper

A

Hjerte og skelet 2

Glat 1

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12
Q

Struktur af z skiver og dense bodies

A

Z skiver: Z filamenter og alfa aktinin

Dnse kun alfa aktinin

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13
Q

M linje

A

Myomesin og c protein

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14
Q

Kontaktretikulum

A

Der hvor SR og t tubuli mødes

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