Titlebook: Cardiac Rate and Rhythm; Physiological, Morph Lennart N. Bouman,Habo J. Jongsma Book 1982 Martinus Nijhoff Publishers, The Hague 1982 drugs

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逃避现实

0166-9842 the interbeat intervals not exceeding 2%. The pacemaker that is the source of this regular ex­ citation is localised normally within the sinus node (" sino-atrial node " node of Keith and Flack), a most intriguing small piece of tissue in the caval corner of the right atrium. A small portion of thi

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接触

Normal, Transformed and Leukemic Leukocytesells are useful, not only for elucidating the changes during differentiation, but also may provide clues for understanding the complex electrophysiology of adult hearts. Similarly, cultured heart cells may prove useful as a model system in which to study automaticity of heart cells.

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Oscar Gans,Gerd-Klaus SteiglederThis early phase of arrhythmias lasts only for 10 to 30 minutes and is followed by a period that is relatively free of arrhythmias. A late phase of ectopic activity ensues after 5 to 12 hours, during which ventricular premature beats and tachycardia dominate and ventricular fibrillation occurs infrequently. This phase may last for several days.

沉默

On the Ultrastructural Identification of Pacemaker Cell Types within the Sinus Nodef origin the excitation wave propagates through the sinus node preferentially in an oblique cranial direction toward the crista terminalis. In all other directions, the spread of excitation is considerably slower; in the direction of the interatrial septum conduction fails (Fig. 1).

Cardiac