Potencial De Membrana Flashcards

1
Q

Valor de Célula cardíaca

A

-90mV

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2
Q

Periodo donde no es posible una segunda respuesta

A

Periodo refractario absoluto

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3
Q

Periodo donde puede desencadenarse una segunda respuesta pero se requiere un estímulo muy fuerte

A

Periodo refractario relativo

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4
Q

Fase 0

A

Entrada de sodio

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5
Q

Fase 1: re polarización temprana

A

Salida de K y entrada de Na

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6
Q

Fase 2

A

Entrada de Ca y salida de K

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7
Q

Fase 3: re polarización tardía

A

Dos salidas de K

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8
Q

Fase 4

A

Bomba de Na y K (3Na por 2K)

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9
Q

Catión

A

Ion con carga positiva: Na, K y Ca

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10
Q

Anión

A

Ion con carga negativa

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11
Q

Anti arrítmico tipo 1 actúa en:

A

Fase 0 bloquea canales de Na

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12
Q

Anti arrítmico tipo 4 actúa en:

A

Fase 2: bloquea canal de Ca

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13
Q

Anti arrítmico tipo 3 actúa en:

A

Fase 3: bloquea canal de K

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14
Q

Anti arrítmico tipo 5:

A

Fase 4: actúan en bomba NaK ATPasa

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