cardiac action potential

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cardiac action potential,

the transmembrane potential in the heart, consisting of five phases: 0, the upstroke or rapid depolarization, which initiates the heartbeat in response to an influx of Na⁺; 1, early rapid repolarization; 2, plateau in response to an influx of Ca²⁺; 3, final rapid repolarization in response to an influx of K⁺; and 4, resting membrane potential and diastolic depolarization. Abnormalities of the heart or its conduction system that alter the cardiac action potential lead to the development of cardiac arrhythmias.

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repolarization S-T segment slow-response action potential supernormal excitability T wave			Thus, the most important toxic effect of TCAs is the slowing of depolarization of the cardiac action potential by inhibition of the sodium current and this delays propagation of depolarization through both myocardium and conducting tissue. Beta-blocker treatment in an adolescent with amitriptyline ... by Baysal, Tamer; Oran, Bulent; Dogan, Mustafa; Cimen, Derya; Elmas, Sefika; Karaaslan, Sevim / The Anatolian Journal of Cardiology (Anadolu Kardiyoloji Dergisi) ] current important for the repolarization phase of the cardiac action potential. Cocaine cardiovascular toxicity by Karch, Steven B. / Southern Medical Journal The effects of potassium channel gene regulation on ion currents, protein density, and the cardiac action potential have been demonstrated previously. Metal particulate matter components affect gene expression and beat ... by Devlin, Robert B. / Environmental Health Perspectives			carcinomatoid carcinomatosis carcinomatous carcinomatous myopathy carcinomatous pericarditis carcinophilia carcinophobia carcinosarcoma carcinosis carcinosis pleurae carcinostatic carcinous Carcopithecus card test cardamom cardamon Cardarelli's sign Cardene cardenolide carder cardi(o)- cardi- cardia cardia- cardiac cardiac action potential cardiac aneurysm cardiac angiography cardiac apex cardiac apnea cardiac arrest cardiac arrhythmia Cardiac Arrhythmia Suppression Trial cardiac asthma cardiac atrophy cardiac blood pool imaging Cardiac Blood Pool Scan cardiac care cardiac care: acute cardiac care: rehabilitative cardiac catheter cardiac catheterization cardiac cirrhosis cardiac compression cardiac concussion cardiac conduction defect Cardiac Cripple cardiac cycle cardiac decompensation cardiac decompression cardiac depressant			Cardholder Statement of Questioned Item Cardholder to Card Cardholder to External System Cardholder Unique Identifier Cardholder Verification Method Cardholder Verification Method Result cardholders cardholders cardholding cardholding cardhouse CARDI CARDI CARDI cardi(o)- cardi- cardi- cardia cardia cardia cardia cardia- cardia- cardiac cardiac cardiac cardiac cardiac Cardiac ablation Cardiac Accelerator Center cardiac action potential Cardiac Acute Care Unit cardiac afterload cardiac afterload cardiac afterload Cardiac Allograft Rejection Gene Expression Observational Study Cardiac Allograft Vascular Disease Cardiac Allograft Vasculopathy Cardiac amyloidosis Cardiac and Respiratory Education cardiac aneurysm cardiac aneurysm cardiac aneurysm Cardiac angiography cardiac antrum cardiac antrum cardiac antrum cardiac apex cardiac apex cardiac apex cardiac apex cardiac apnea cardiac area cardiac area cardiac area Cardiac arhythmia Cardiac arhythmia Cardiac arhythmia cardiac arrest cardiac arrest cardiac arrest

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