Describe the 5 types of autorhytmithmic cardiac cells/tissues that are involved in the cardiac conduction (nodal)...

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Describe the 5 types of autorhytmithmic cardiac cells/tissues thatare involved in the cardiac conduction (nodal) system

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Rhythmicity is the ability of a tissue to produce its own impulses regularly It is also called autorhythmicity or selfexcitation Property of rhythmicity is present in all the tissues of heart However heart has a specialized excitatory structure from which the discharge of impulses is rapid This specialized structure is called pacemaker From here the impulses spread to other parts through the specialized conductive system Rhythmicity of Different Parts of Human Heart 1 SA node 70 to 80minute 2 AV node 40 to 60minute 3 Atrial muscle 40 to 60minute 4 Purkinje fibers 35 to 40minute 5 Ventricular muscle 20 to 40minute Components of Conductive System in Human Heart 1 AV node 2 Bundle of His 3 Right and See Answer

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