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[atrioventricular node] képek

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RF
Ventricular and junctional premature contractions can activate the ventricle again through the reentry mechanism to form the complex arrhythmia of repetitive beats.-stock-foto
RF
Electrocardiogram ECG displaying a junctional rhythm, which occurs when the electrical signals in the heart originate from the atrioventricular junction instead of the sinoatrial node, 3D illustration-stock-foto
RF
In complete left bundle branch block, the conduction of the LBB can be completely interrupted or can still be conducted, but it is delayed by at least 45ms than the RBB.-stock-foto
RF
Third degree atrioventricular block in young women may be congenital, with the block located on the atrioventricular node or above bifurcation of the His bundle.-stock-foto
RF
Sinus node electrogram is a technique to record the electrical activity of the sinus node in an invasive way. The graph contains the depolarization potential of the sinus node and the atrium.-stock-foto
RF
Abnormal ECG refers to changes in depolarization waves and or repolarization waves, most of which are pathologic and few are physiological.-stock-foto
RF
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-stock-foto
RF
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-stock-foto
RF
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.-stock-foto
RF
Abnormal ECG refers to changes in depolarization waves and or repolarization waves, most of which are pathologic and few are physiological.-stock-foto
RF
Electrocardiogram displaying a junctional rhythm, which occurs when the electrical signals in the heart originate from the atrioventricular junction instead of the sinoatrial node, 3D illustration.-stock-foto
RF
The conduction system of the heart is supplied by the branches of the coronary artery. Once the blood vessels are blocked, it can cause conduction disorder. This picture is suitable for dark background. This picture is suitable for light background.-stock-foto
RF
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.-stock-foto
RF
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.-stock-foto
RF
Ectopic beats originate from the atrioventricular junctional region. The PR interval  is usually less than 120ms, the P-wave is inverted, and the QRS waveform is supraventricular pattern.-stock-foto
RF
A 1-year-old child developed atrioventricular reentrant tachycardia. When tachycardia occurred,  retrograde P waves can be detected each QRS complex.-stock-foto
RF
Mock up of a human organ heart on a white background, isolate. Anatomical structure and physiology of the heart, right and left ventricle and atrium. The cardiovascular system, cardiomyocytes-stock-foto
RF
3D illustration of Heart - Part of Human Organic. render-stock-foto
RF
Mock up of a human organ heart on a white background, isolate. Anatomical structure and physiology of the heart, right and left ventricle and atrium. The cardiovascular system, dynamocardiography-stock-foto
RF
The ECG characteristic of 21 atrioventricular block is that only one of every two P waves descends the ventricle and the other is blocked.-stock-foto
RF
On ECG paper, five small squares make up a middle square. Divide 300 by the number of middle squares occupied by adjacent identical ECG waves to get the heart rate.-stock-foto
RF
The PR interval of an ecg includes the time during which supraventricular impulses are transmitted through the atrioventricular node, His bundle, bundle branches, and terminal Purkinje fibers.-stock-foto
RF
Bradycardia mainly includes sinus node lesion, atrioventricular block or both, with slow ventricular rate and even transient ventricular arrest.-stock-foto
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Third degree atrioventricular block can occur in the atrioventricular node, His bundle, and bundle branches, and only the escape rhythm from below the block layer can excite the ventricle.-stock-foto
RF
During ventricular depolarization, varying degrees of right ventricular hypertrophy and left ventricular confrontation produce different forms of right ventricular hypertrophy ECG.-stock-foto
RF
Electrocardiogram ECG displaying a junctional rhythm, which occurs when the electrical signals in the heart originate from the atrioventricular junction instead of the sinoatrial node, 3D illustration-stock-foto
RF
Abnormal ECG refers to changes in depolarization waves and or repolarization waves, most of which are pathologic and few are physiological.-stock-foto
RF
Under normal circumstances, when the initial excitation potential of the ventricle is far away from a certain lead axis, a Q wave will be projected on that lead, which is a physiological Q wave.-stock-foto
RF
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-stock-foto
RF
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-stock-foto
RF
Male, 29 years old, clinically diagnosed with nasal septal malformation. Preoperative ECG is normal, note the J waves in the inferior leads.They are physiological J waves.-stock-foto
RF
Electrocardiogram ECG displaying a junctional rhythm, which occurs when the electrical signals in the heart originate from the atrioventricular junction instead of the sinoatrial node, 3D illustration-stock-foto
RF
Electrocardiogram ECG displaying a junctional rhythm, which occurs when the electrical signals in the heart originate from the atrioventricular junction instead of the sinoatrial node, 3D illustration-stock-foto
RF
A normal ECG is an ECG that does not have any abnormal changes and can be seen in healthy people as well as in people with heart disease.-stock-foto
RF
The autonomic  frequency of the sinoatrial node is the fastest, and other secondary pacemakers are controlled through mechanisms of preemptive occupation and overspeed suppression.-stock-foto
RF
Third degree atrioventricular block in young women may be congenital, with the block located on the atrioventricular node or above bifurcation of the His bundle.-stock-foto
RF
Male, 48 years old, paroxysmal palpitations for 10 years. ECG suggests ventricular preexcitation, and the bypass tract may be located in the left posterior septum.-stock-foto
RF
In the third degree of atrioventricular block, the PR interval variation was irregular. In the second degree of type I atrioventricular block, the PR interval changes periodically.-stock-foto
RF
The left bundle branch is mainly divided into the left anterior fasciculus and the left posterior fasciculus. Some of their branches further converge to form the left septal fasciculus, which has greater anatomical variation.-stock-foto
RF
The SA (sinoatrial) node generates an electrical signal that causes the upper heart chambers to contract. The signal then passes through the AV (atrioventricular) node to the lower heart chambers, causing them to contract, or pump.-stock-foto