31 Bilder zum Thema "purkinje" bei ClipDealer

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It is best to measure the QRS wave duration in a 12 lead synchronous electrocardiogram, as some of the QRS wave start and end points are located on the isoelectric line.
Due to the large mass of the left ventricle, the dominant excitation potentials of the left and right ventricles are oriented towards the left ventricle, i.e. towards the left, Inferior and posterior.
human development biology neuron with cell in black and white
human development biology neuron with cell in black and white
On the conventional 12-lead ECG, under normal circumstances, there are some inherent patterns of QRS waves in different leads, which are not exactly the same.
The terminal excitation of the ventricle forms the final part of the S wave in lead V1, gradually returning to the isoelectric line, and forms a small S wave in lead V5.
human development biology neuron with cell in black and white
Human brain with highlighted cerebellum and close-up view of Purkinje neurons, one of the commonest types of cells in cerebellar cortex, 3D illustration
Human brain with highlighted cerebellum and close-up view of Purkinje neurons, one of the commonest types of cells in cerebellar cortex, 3D illustration
Hypoplastic left heart syndrome is a rare congenital heart defect in which the left side of the heart is severely underdeveloped.It may affect the left ventricle, aorta, aortic valve, or mitral valve. 3D Render
In humans, Purkinje fibers are not distributed throughout the entire ventricular wall, but rather in the superficial myocardium beneath the endocardium and do not reach the epicardium.
Cerebellum Medical Illustration Human Brain anatomy
QRS wave is a ECG wave generated by ventricular excitation, typically in a three-phase waveform, named qRs wave. The QRS waveform of each lead is different.
When the first degree interatrial block occurs, the conduction time from the right atrium to the left atrium is prolonged, the P wave widens, and bimodal P wave ECG changes appear.
human development biology neuron with cell in black and white
human development biology neuron with cell in black and white
human development biology neuron with cell in black and white
Purkinje neuron, GABAergic neuron located in the cerebellum, isolated on black background, 3D illustration
Hypoplastic left heart syndrome is a rare congenital heart defect in which the left side of the heart is severely underdeveloped.It may affect the left ventricle, aorta, aortic valve, or mitral valve. 3D Render
QRS wave is a ECG wave generated by ventricular excitation, typically in a three-phase waveform, named qRs wave. The QRS waveform of each lead is different.
The initial excitation of the ventricle forms a small r wave in lead V1 and a small q wave in lead V6.
Human brain with highlighted cerebellum and close-up view of Purkinje neurons, one of the commonest types of cells in cerebellar cortex, 3D illustration
When a 2:1 bundle branch block occurs, the refractory period of the bundle branch is longer than one basal cardiac cycle but shorter than two basal cardiac cycles.
Sometimes, there may be slight non-specific changes and normal variations in the electrocardiogram, which are often due to physiological reasons and have no clinical therapeutic significance.
Narrow QRS wave and wide QRS wave
During normal ventricular excitation, the earliest epicardial breakthrough point is located in the paraventricular septal area, and the RV outflow tract and the base of the LV are finally excited.
Human brain with highlighted cerebellum and close-up view of Purkinje neurons, one of the commonest types of cells in cerebellar cortex, 3D illustration
When there are more than 3 components in the QRS wave of lead V1, do not diagnose it as right bundle branch block, as this is a manifestation of fragmented QRS wave.
On a conventional 12 lead electrocardiogram, the QRS wave of complete right bundle branch block in lead V1 is usually an rSR three-phase waveform.
Purkinje neurons, GABAergic neuron located in the cerebellum, 3D illustration
At present, the definition of narrow QRS complex is QRS durationgreater than or equal to 120ms, and wide QRS complex is defined as QRS duration beyond 120ms.

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