conduction system
61Artificial 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… …
62Chronotropic — 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 …
63Cardiac pacemaker — The contractions of the heart are controlled by chemical impulses, which fire at a rate which controls the beat of the heart.The cells that create these rhythmical impulses are called pacemaker cells, and they directly control the heart rate.… …
64Contractility — Myocardial contractility is the intrinsic ability of the heart to contract independent of preload and afterload. Changes in the ability to produce force during contraction result from different degrees of binding between myosin (thick) and actin… …
65Heart — This article is about the organ in various animals. For the human heart, see Human heart. For other uses, see Heart (disambiguation). Cardiac redirects here. For the cardboard computer, see CARDboard Illustrative Aid to Computation …
66Second degree AV block — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 10477 ICD10 = ICD10|I|44|1|i|30 ICD9 = ICD9|426.12, ICD9|426.13 ICDO = OMIM = MedlinePlus = eMedicineSubj = emerg eMedicineTopic = 234 MeshID = Second degree AV block is a disease of the… …
67Cardiac cycle — Cardiac events occurring in the cardiac cycle. Two complete cycles are illustrated. The cardiac cycle is a term referring to all or any of the events related to the flow or blood pressure that occurs from the beginning of one heartbeat to the… …
68Dromotropic — Derives from the Greek word Dromos , meaning running, a course, a race. A dromotropic agent is one which affects the conduction speed in the AV node, and subsequently the rate of electrical impulses in the heart.[1][2] Agents that are dromotropic …
69Third degree AV block — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 10477 ICD10 = ICD10|I|44|2|i|30 ICD9 = ICD9|426.0 ICDO = OMIM = MedlinePlus = eMedicineSubj = emerg eMedicineTopic = 235 MeshID = Third degree AV block, also known as complete heart block, is …
70Septomarginal trabecula — Moderator band Interior of right side of heart. (Septomarginal trabecula visible at bottom right, but not labeled.) Latin trabecula septomarginalis Gray s …
