National University Of Center Buenos Aires (UNICEN
)
Anatomia
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electrofisiologia cardiaca
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Course
Anatomia
Institution
National University Of Center Buenos Aires (UNICEN
)
En el siguiente power point se explica el sistema de conduccion eléctrico del sistema cardiovascular, su funcionamiento, componentes anatomicos, lectura del e.c.g , derivaciones cardiologicas, como leer el lectrocardiogrma
National University of Center Buenos Aires (UNICEN

)
Anatomia
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EXCITACIÓN Y
CONDUCCION RITMICA
DEL CORAZON
CONTROL DE LA EXCITACIÓN DEL CORAZON
ACTIVIDAD ELECTRICA DEL CORAZON
CARACTERISTICAS DE E.C.G
, Excitación rítmica del corazón
Funciones:
Genera impulsos de
manera rítmica
produciendo la
contracción periódica
del músculo cardiaco
Conducción de los
impulsos a todo el
miocardio.
, Marcapasos: El sistema de
conducción de impulsos Sistema de
consiste en células
especializadas en la conducción
transmisión del impulso
nervioso.
Los componentes del
sistema son el nodo
sinoarterial (marcapaso) el
nodo atrio ventricular, el
fascículo auriculo
ventricular (haz de hiz) y las
fibras de purkinje
, MARCAPASO O NODO
SINUSAL:
Se localiza en la pared del atrio
Sistema de
derecho por debajo de la conducción
desembocadura de la vena cava
anterior genera el potencial de
acción.
NODO
AURICULOVENTRICULAR:
Parte del sistema del corazón
formado por una masa compacta
de células de conducción
localizadas cerca del orificio del
seno coronario en la pared de la
aurícula derecha.
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