Werking spier Flashcards

1
Q

Myosine

A

dikke filament sacromeer

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2
Q

actine

A

dunne filament sacromeer

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3
Q

sacromeer

A

zorgt voor contractie van de spier

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4
Q

M-lijn

A

midden/bindplek myosine

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5
Q

Z-lijn

A

midden/bindplek actine

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6
Q

A-band

A

lengte myosine

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7
Q

I-band

A

waar geen myosine zit

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8
Q

H-band

A

waar geen actine zit

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9
Q

L-type kanalen

A

voor Ca de cel in te laten gaan

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10
Q

Ryanodine receptors

A

Op SR, hierdoor wordt Ca uitgifte geactiveerd

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11
Q

SERCA pomp

A

Zorgt dat Ca terug gaat het SR in

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12
Q

Phospholamban

A

Reguleerd SERCA pomp, verwijderd inhiberend effect

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13
Q

Calsequestrin

A

Ca-bindend proteine van het SR

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14
Q

“Law of the heart”

A

vergrote sacromeer lengte geeft vergrote kracht en contractie

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15
Q

Isometrische contractie

A

statische contractie van de spier, spier levert kracht zonder verkorting

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16
Q

Isotonische contractie

A

Spanning in de spier blijft gelijk terwijl spier verkort