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BIOFISICA > CURVA PRESION VOLUMEN > Flashcards

CURVA PRESION VOLUMEN Flashcards

1
Q

Volumen latido regulado por:

A

precarga, poscarga, contractilidad

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2
Q

volumen minuto regulado por

A

frecuencia cardiaca

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3
Q

que es el retorno venoso

A

Volumen de sangre que fluye desde las
venas hacia la aurícula derecha cada minuto
(70ml)

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4
Q

que determina el retorno venoso

A

Determina la presión y volumen diastólicos
final del ventrículo izquierdo (precarga)

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5
Q

la precarga aumenta en:

A

hipervolemia
Insuficiencia valvular
Falla cardiaca

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6
Q

la poscarga aumenta en

A

Hipertensión
Vasoconstricción
Digoxina

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7
Q

cultura general

A
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8
Q

ionotropismo positivo

A

cuando calcio extracelular entra a celula e incrementa contractilidad

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9
Q

cronotropismo positivo

A

cuando calcio extracelular entra a celula, incrementa contractilidad y por tanto incrementa frecuencia

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10
Q

lusitropismo positivo

A

Se acelera que el Ca intracelular regrese al retículo sarcoplásmico y esto ocasiona un mayor tiempo de relajación del miocito.

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BIOFISICA (5 decks)

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