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Electrical Conduction System and Activity of the Human Heart | He…
The heart has an electrical system that causes it to beat and pump blood in a smooth and regular way (like a clock or an engine). Special cells in the heart start electrical signals. These signals then travel along pathways through the heart and cause it to beat. During a normal heartbeat, an electrical signal is first made in a group of cells ...
heart electrical signal pathway

[DOC File]MCA Biology
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4. AV bundle splits into two pathways in the Interventricular septum (bundle branches) 5. Bundle branches carry the impulse toward the apex of the heart. 6. Purkinje fibers carry the impulse to the heart apex & ventricular walls. Extrinsic Innervation of the Heart • Heart is stimulated by the sympathetic cardio-acceleratory center
cardiac conduction system diagram

[DOC File]YOU CAN LIVE WITH IT - Cardiac Associates
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The diagram shows a human heart as seen from the front. The main blood vessels are labelled D to G. The arrows show the pathways taken by the electrical activity involved in coordinating the heartbeat in the cardiac cycle. (a) Which of the blood vessels, D. to . G (i) carries oxygenated blood to the heart (1)
diagram of heart electrical pathway

[DOCX File]A4.2.3.EKGF
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Electrical shock to the heart (known as “cardioversion”) or a pacemaker may be considered in extreme cases ... (atria) and lower chambers (ventricles) of the heart that bypass the normal conduction pathways) Medications. Medications presented in this section are intended to provide general information about possible treatment. The treatment ...
electrical impulses of the heart

[DOC File]Electrical Safety in the O.R.
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Lecture 27 – Rhythmical Excitation of the Heart . I. Specialized systems of the heart . Generation of rhythmical impulses. Conduction of electrical impulses through the heart. Contractions. Susceptible to damage by heart disease. Special excitatory and conductive systems of the heart. Sinal Atrial Node (SA node) Internodal pathways
cardiac electrical path

Patient assessment - American Heart Association
The electrical impulse travels along pathways starting at the top of the heart muscle, then through the middle of the heart (junction) and to the bottom. The junction between the top of the heart (atrium) and bottom of the heart (ventricle) is called the AV (atrioventricular) junction.
normal electrical conduction of heart

[DOC File]Electrophysiology Study / Catheter Ablation
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The natural conduction pathways facilitate orderly spread of the impulse and coordinated contraction of first the atria and then the ventricles. The electrical journey creates unique deflections in the EKG that tell a story about heart function and health (Figure 1).
electrical conduction

[DOC File]The Cardiovascular System: The Heart
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Electrophysiology Study / Catheter Ablation. Explanation of procedure. The aim of the procedure is to look for any abnormal heart rhythms or abnormal electrical pathways within the heart and in most cases use heat or cold to kill off destroy the area involved.
electrical conduction system of the heart

[DOC File]Wiley
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Electrical Safety in the O.R. Steven L. Shafer, M.D. August 13, 1997. ... and two orders of magnitude above the fibrillation threshold when pacing electrodes are in the heart, even though the ground wire is functioning properly! ... The current will find alternate pathways from one electrode to the other. It is important that the ”laparoscope ...
heart electrical signal pathway

Electrical pathways of the heart