sinoatrial node
111Artificial pacemaker — Cardiac resynchronization therapy and CRT (Cardiac Resynchronization Therapy) redirect here. For the device termed a CRT D, see Implanted cardiac resynchronization device. For other uses, see Pacemaker (disambiguation). A pacemaker, scale in… …
112List of anatomical topics — This page aims to list articles related to anatomy. This list is not necessarily complete or up to date if you see an article that should be here but isn t (or one that shouldn t be here but is), please update the page accordingly. NOTOC A… …
113Chronotropic — effects (from chrono , meaning time, and tropos, a turn ) are those that change the heart rate. Chronotropic drugs may change the heart rate by affecting the nerves controlling the heart, or by changing the rhythm produced by the sinoatrial node …
114Bundle branch block — ICDO = OMIM = MedlinePlus = eMedicineSubj = ped eMedicineTopic = 2501 eMedicine mult = eMedicine2|ped|2500 MeshName = Bundle Branch+Block MeshNumber = C14.280.067.558.323 A bundle branch block refers to a defect of the heart s electrical… …
115Crista terminalis — Interior of the heart, frontal view. (Crista terminalis labeled at left, second from the top.) Latin crista terminalis atrii dextri Gray s …
116atrioventricularnode — atrioventricular node n. A small mass of specialized cardiac muscle fibers, located in the wall of the right atrium of the heart, that receives heartbeat impulses from the sinoatrial node and directs them to the walls of the ventricles. Also… …
117mammal — mammallike, adj. /mam euhl/, n. any vertebrate of the class Mammalia, having the body more or less covered with hair, nourishing the young with milk from the mammary glands, and, with the exception of the egg laying monotremes, giving birth to… …
118atrial fibrillation — Irregular rhythm (arrhythmia) of contraction of the atria (upper heart chambers). The most common major arrhythmia, it may result as a consequence of increased fibrous tissue in the aging heart, of heart disease, or in association with severe… …
119nodus atrioventricularis — [TA] atrioventricular node: a small area of specialized cardiac muscle cells and fibers that receives the cardiac impulses from the sinoatrial node and passes them on toward the ventricles, introducing a delay in impulse conduction. It is located …
120cardiac muscle — noun the muscle tissue of the heart; adapted to continued rhythmic contraction • Syn: ↑heart muscle • Hypernyms: ↑muscle, ↑muscular tissue • Hyponyms: ↑pacemaker, ↑cardiac pacemaker, ↑ …
