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Definition of Cardiac conduction system
Electrical Conduction System of the Heart. The electrical conduction system in the heart coordinates contraction. The APs originate in one part of the strategically located autorhythmic cells and then spreads this signal between cells via gap junctions in intercalated disks. The depolarization of the contractile muscle cells is followed by a ...
intrinsic conduction system order

[DOC File]Basic EKG Dysrhythmia Identification
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This occurs when an electrical impulse is delayed, blocked or both in one or more portions of the electrical conduction system while the impulse is conducted normally through the rest of the conduction system. The end results are a delayed impulse entering cardiac cells which have been depolarized by the normally conducted impulse.
electrical pathways of the heart

[DOC File]Ready for Review
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• To recognize that the intrinsic conduction system coordinates heart activity by determining the direction and speed of heart depolarization. • To relate heart electrical activity to an ECG wave tracing. Page 3. Intrinsic Conduction System • This diagram shows the location of the autorhythmic, or nodal cells of the intrinsic conduction ...
conduction system of the heart labeled

[DOC File]14 CHAPTER 14
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The Conducting System. Introduction The heart's conducting system consists of the . sinoatrial node (SA node), atrioventicular node (AV node), the bundle of His, the bundle branches and the Purkinje fibers. The electrical impulse that causes rhythmic contraction of heart muscles arises in the . SA node. which is the intrinsic pacemaker of the ...
cardiac conduction pathway

The Conducting System
The conduction system consists of specialized heart muscle fibers that transmit electrical impulses to regulate atrial and ventricular contraction. These modified fibers are separated from the ordinary myocardial fibers by delicate envelopes of connective tissue.
intrinsic conduction system

[DOC File]THE HEART
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The electrical events occur first, involving the spreading of the action potential between autorhythmic cells of the intrinsic conduction system. The autorhythmic cells then convey the impulse to the contractile cells of the myocardium, which contract The contraction is the mechanical event that causes a heartbeat.
25 compare rates of conduction system firing

[DOC File]Intrinsic Conduction System
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Outline the structures of the heart that a RBC would encounter during one circulatory cycle. Name all of the important structures found on the exterior surface of the heart and their roles. What and where are the 4 valves of the heart? What are some disorders of heart valves? Discuss the anatomy of the electrical conduction system of the heart.
electrical conduction in heart

[DOC File]Cardiac Action Potential ADAM
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The mechanical pumping action of the heart can occur only in response to an electrical stimulus. The electrical conduction system consists of the sinoatrial (SA) node, the atrioventricular (AV) node, the bundle of His, the right and left bundle branches, and the Purkinje fibers.
cardiac conduction system diagram

Visible Body - Virtual Anatomy to See Inside the Human Body
Physiology of Cardiac Conduction. In an adult with a healthy heart, the heart rate is usually about 72 beats per minute. The excitatory and electrical conduction system of the heart is responsible for the contraction and relaxation of the heart muscle. The sinoatrial node (SA node) is the pacemaker where the electrical impulse is generated.
intrinsic conduction system order

[DOC File]Study Guide # 4
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6. Heart Conduction. Read about how the cardiac conduction system delivers electrical impulses to the heart and stimulates contractions. Trace the path that electrical impulses take in order to contract and relax the heart. Number the structures below by the order in which the impulse travels. ____ Atrioventricular (AV) node ____ Sinoatrial (SA ...
electrical pathways of the heart

Electrical conduction system of the heart