Type your answer here... abnormally slow depolarization of the ventricles would most change the shape of the ?in an ekg tracing
the P wave
No, the right ventricle is first to depolarize, that is if you're talking about ventricular depolarization (the QRS complex). If not, then it's the right atrium (atrial depolarization, P wave).
It comes from the left ventricle out through the aorta.
left ventricle
the different types of ventricles are the left ventricle and the right ventricle.
the P wave
No, the right ventricle is first to depolarize, that is if you're talking about ventricular depolarization (the QRS complex). If not, then it's the right atrium (atrial depolarization, P wave).
purkinje fibers
QRS
The atrial repolarization occurs during the QRS complex of the ECG but is obscured by the ventricle depolarization.
Depolarization in a hair cell is triggered by mechanical stimulation, such as sound waves or movement, while depolarization in a typical neuron is triggered by chemical signals.
No, depolarization is not the resting state of the P wave. Depolarization is the process where the heart muscle contracts in response to an electrical signal. The P wave represents atrial depolarization, the electrical activity that triggers the contraction of the atria in the heart.
Depolarization
Voltage-gated sodium channels enable depolarization in excitable cells by allowing an influx of sodium ions, which leads to the rapid depolarization phase of an action potential.
The greater influx of sodium ions results in membrane depolarization. This is because sodium ions carry a positive charge, which leads to a decrease in the membrane potential towards zero or a positive value.
An Electrocardiogram of a single heart beat shows three distinct waves. These are the P, QRS and T Waves. The QRS wave (normally the largest spike) in the electrocardiogram, is that of the ventricles depolarizing and contracting.
The portion of the ECG that corresponds to atrial depolarization is called the P wave. The P wave is the first wave on the ECG.