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Fisiología > Músculo > Flashcards

Músculo Flashcards

1
Q

Miosina

A

Proteína de filamentos gruesos
1 cadena pesada
Cabeza: sitio unión actina
Cuello: ATPasa
Cola: se entrelazan
2 cadenas ligeras

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2
Q

Actina

A

Principal proteína filamentos delgados

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3
Q

Nebulina

A

Capacidad elástica
Alinea filamentos actina
Se adhiere a discos z

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4
Q

Tropomiosina

A

Envuelve filamentos de actina y cubre sitios de unión a Miosina
Puede estar activada o apagada

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5
Q

Troponina

A

Moviliza tropomiosina
T: se une a tropomiosina
C: se une a calcio
8: se une a actina, inhibitoria

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6
Q

Titina

A

Componente elástico del sarcómero
Va desde línea z a línea m

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7
Q

Características músculo cardiaco

A

Mocitos más cortos y ramificados
Discos intercalados
Sincitio
Marcapaso

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8
Q

Qué no tiene el músculo cardiaco?

A

Cisterna

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9
Q

Qué inhibe a SERCA en M. Cardiaco?

A

PLB (fosfolambano)

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10
Q

Qué proteínas no se encuentran en M. Liso?

A

Troponina
Nebulina

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11
Q

Proteínas filamentos intermedios

A

Desmina
Vimentina

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Fisiología (9 decks)

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