Cardiac action potential - Wikipedia, the free encyclopedia
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The cardiac action potential is a specialized action potential in the heart, with unique properties necessary for function of the electrical conduction system of the heart. The cardiac action potent...
en.wikipedia.org/wiki/Cardiac_action_potential
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Electrical conduction system of the heart - Wikipedia, the free encyclopedia
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The normal electrical conduction in the heart allows the impulse that is generated by the sinoatrial node (SA node) of the heart to be propagated to (and stimulate) the myocardium (Cardiac muscle). Th...
en.wikipedia.org/wiki/Electrical_conduction_system_of_t...
en.wikipedia.org/wiki/Electrical_conduction_system_of_the_heart
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Physiological simulations focus on the interaction between depolarization and repolarization (i.e., premature stimulation). Results demonstrate the importance of the slow recovery of INa in determining the response of the cell. ... Cardiac alternans induced by fibroblast-myocyte coupling: mechanistic insights from...
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circres.ahajournals.org/cgi/content/abstract/68/6/1501
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A defining property of L-type Ca(2+) channels is their potentiation by both 1,4-dihydropyridine agonists and strong depolarization. ... In this study, we have tested whether the mechanisms of agonist- and depolarization-induced potentiation in the cardiac L-type channel (alpha(1C)) are linked.
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www.medscape.com/medline/abstract/11696608
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As the heart undergoes depolarization and repolarization, the electrical currents that are generated spread not only within the heart, but also throughout the body. This electrical activity generated by the heart can be measured by an array of electrodes placed on the body surface. ... Cardiac Valve Disease...
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www.cvphysiology.com/Arrhythmias/A009.htm
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Many cells in the body have the ability to undergo a transient depolarization and repolarization that is either triggered by external mechanisms (e.g., motor nerve stimulation of skeletal muscle or cell-to-cell depolarization in the heart) or by intracellular, spontaneous mechanisms (e.g., cardiac pacemaker cells).
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www.cvphysiology.com/Arrhythmias/A010.htm
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B: in mitochondria treated with KATP channel blocker 5-hydroxydecanoic acid (5-HD, 20 µM), levcromakalim (20 µM) did not induce membrane depolarization. Arrowheads, addition of isolated cardiac mitochondria to a solution containing TPP+. Mitochondrial membrane potential was measured as described in Fig.
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ajpheart.physiology.org/cgi/content/full/275/5/H1567
ajpheart.physiology.org/cgi/content/full/275/5/H1567
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Sequence of cardiac depolarization; 1. Draw the 5 main vectors of the heart. 2. Based on the 5 main vectors, determine what each lead (limb and precordial) should normally look like. 3. Why does the mean QRS vector travel downward and to the left in the body?
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www.unm.edu/~lkravitz/UNM%20Pages/jjtestonestudy.html
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Focussing on the heart, a cardiac beat is initiated by a depolarization wave originating in sinus node, spreading out subsequently over the ...
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www.springerlink.com/index/AL0LXJGJ0F57HF5W.pdf
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