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Which of the following structures of the conduction system of the heart is considered the electrical gateway to ventricles
a. Purkinje fibers
b. AV bundle
C. AV node
d SA node

Answers

Answer 1

Explanation:

B)     Los impulsos eléctricos generados por el músculo cardíaco (el miocardio) estimulan el latido (contracción) del corazón. Esta señal eléctrica se origina en el nódulo sinoauricular (SA) ubicado en la parte superior de la aurícula derecha. El nódulo SA también se denomina el «marcapasos natural» del corazón. Cuando este marcapasos natural genera un impulso eléctrico, estimula la contracción de las aurículas. A continuación, la señal pasa por el nódulo auriculoventricular (AV). El nódulo AV detiene la señal un breve instante y la envía por las fibras musculares de los ventrículos, estimulando su contracción. Aunque el nódulo SA envía impulsos eléctricos a una velocidad determinada, la frecuencia cardíaca podría variar según las demandas físicas o el nivel de estrés o debido a factores hormonales.

Answer 2
B would be correct. Your welcome

Related Questions

Formula for drip rate

Answers

Answer:

the total volume divided by time mutiplied by the drop factor = flow rate

Explanation:

Total volume divided by time multiplied by the drop factor: flow rate
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