The term excitation conduction refers to the transmission of excitation in nerve or muscle cells. Excitation conduction is also often referred to as conduction of excitation, but from a medical point of view, this term is not entirely correct. What is excitation conduction? The term excitation conduction refers to the transmission of excitation in nerve … Excitation Conduction: Function, Tasks, Role & Diseases
Ketanserin refers to a substance that has wound-healing and blood pressure-lowering properties. The active ingredient is a serotonin antagonist and acts on different receptors in the human brain. However, ketanserin does not have approval as a drug for these purposes in the Federal Republic and is only used clinically in exceptional cases. What is ketanserin? … Ketanserin: Effects, Uses & Risks
Excitation of the sinus muscle in the heart is transmitted to the working muscles of the atria, but these are electrically insulated from the ventricles, so that transmission of excitation at this point can occur only through the conduction of excitation by the atrioventricular node. Transmission through the muscle cell-containing atrioventricular node is delayed, thus … Atrioventricular Node: Structure, Function & Diseases
Phenytoin is a drug in the anticonvulsant drug class. Depending on its use, phenytoin is also classified as an antiarrhythmic agent. What is phenytoin? Anticonvulsants are used to inhibit impulses in the CNS to prevent incipient seizures. Phenytoin is a drug used primarily to treat epilepsy. However, the substance is also used for the treatment … Phenytoin: Effects, Uses & Risks
Digoxin, like digitoxin, is extracted from foxglove (Digitalis lanata or Digitalis purpurea), which is why both are classified as digitalis glycosides. Cardiac glycosides increase the beating power of the heart muscle while lowering the heart rate. What is digoxin? Digoxin is a substrate of the P-glycoprotein from the group of so-called cardioactive glycosides (also cardiac … Digoxin: Effects, Uses & Risks
Diltiazem is the name given to a certain calcium antagonist. The drug is used to treat cardiovascular disease. What is diltiazem? Diltiazem is the name given to a certain calcium antagonist. The drug is used to treat cardiovascular disease. Diltiazem is an antiarrhythmic drug that belongs to the calcium antagonists or calcium channel blockers. The … Diltiazem: Effects, Uses & Risks
Budipin is an active drug ingredient used to treat Parkinson’s disease. It is effective at any stage of the disease and can be optimally combined with other anti-Parkinson drugs. Most importantly, Budipin reduces the tremors typical of those with the disease and significantly improves slowed movements. What is Budipin? Budipin is a drug substance used … Budipin: Effects, Uses & Risks
The junctional replacement rhythm of the heart sets in as soon as the normal rhythm generator, the sinoatrial node in the right atrium, fails or the frequency input falls below about 60 Hz. Stimulus formation occurs in the junctional zone of the atrioventricular (AV) node, His bundle, and right atrium because the AV node itself … Junctional Replacement Rhythm: Function, Tasks, Role & Diseases
Atrioventricular block Bradycardic arrhythmia Definition In AV block, the electrical excitation of the sinus node is only delayed (1st degree AV block), only partially (2nd degree) or not at all (3rd degree) passed on to the chamber muscles by the AV node or subordinate structures. This means that the flow of electrical potentials is interrupted … AV block
Causes An AV block is usually caused by pathological changes in the stimulus conduction system. CHD (coronary heart disease), a heart attack and medication can lead to an AV block. It usually occurs in older people. Diagnosis of the AV block by ECG The diagnosis is made on the basis of the medical history and … Causes | AV block
Synonyms in the broadest sense Cardiac arrhythmias Arrhythmia Tachycardia Bradycardia Atrial fibrillation Atrial flutter Extrasystoles Sick Sinus Syndrome AV Block Supraventricular dysrhythmia Ventricular dysrhythmia Definition A cardiac dysrhythmia (also called arrhythmia, “unrhythmic”) is a disturbance of the normal heartbeat sequence, caused by abnormal processes in the formation and conduction of excitation in the heart muscle. … Cardiac arrhythmia
BasicsPhysiology of the heart The heart rhythm is the temporal sequence of contractions of the “pumping organ” heart. A regular rhythm of the heart‘s actions ensures the heart’s efficiency. A “heartbeat” actually consists of two contractions in quick succession (contraction of the heart muscle), that of the atrium and the subsequent contraction of the ventricle. … BasicsPhysiology of the heart | Cardiac arrhythmia
