Electrical Conduction System Of The Heart Pdf
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Diseases of the cardiovascular system that cause sudden cardiac deaths are often caused by lethal arrhythmias that originate from defects in the cardiac conduction system. Development of the cardiac conduction system is a complex biological process that can be wrought with problems.
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Cardiac conduction system
Going back to the analogy of the central heating system, the pump, pipes and radiators are of no use unless connected to a power supply. The pump needs electricity to work. The human heart has a similar need for a power source and also uses electricity. Thankfully we don't need to plug ourselves in to the mains, the heart is able to create it's own electrical impulses and control the route the impulses take via a specialised conduction pathway. The SA node is the natural pacemaker of the heart.
Electrical System of the Heart
The journal, published since , is the official publication of the Spanish Society of Cardiology and founder of the REC Publications journal family. Articles are published in both English an Spanish in its electronic edition. The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two receding years. CiteScore measures average citations received per document published. Read more.
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CONDUCTION SYSTEM ANATOMY. The functions of the electrical system of the heart (Fig. II-1) are not only initiation and rate of the heartbeat, but its.
The Heart’s Conduction System
The generation and propagation of the cardiac impulse is the central function of the cardiac conduction system CCS. Impulse initiation occurs in nodal tissues that have high levels of automaticity, but slow conduction properties. Rapid impulse propagation is a feature of the ventricular conduction system, which is essential for synchronized contraction of the ventricular chambers. Abnormal impulse initiation or propagation can result in brady- and tachy-arrhythmias, producing an array of symptoms, including syncope, heart failure or sudden cardiac death.
Jump to content. See a picture of the heart and its electrical system. Your heart muscle is made of tiny cells. Your heart's electrical system controls the timing of your heartbeat by sending an electrical signal through these cells.
Она посмотрела на часы, потом на Стратмора. - Все еще не взломан. Через пятнадцать с лишним часов.
Тело же его было бледно-желтого цвета - кроме крохотного красноватого кровоподтека прямо над сердцем. Скорее всего от искусственного дыхания и массажа сердца, - подумал Беккер. - Жаль, что бедняге это не помогло. Он принялся рассматривать руки покойного. Ничего подобного ему никогда не приходилось видеть.