andcansometimesdisplayspontaneousdepolarizationandautomaticity.Thismechanismmayserveastheelectrophysiologicalmechanismbehindcertaintypesofectopicbeatsandarrhythmias,particularlyinischemicheartdiseaseandfollowingmyocardialinfarction.❖Conduction speed varies throughout the heart ❖ Slow - AV node ❖ Fast - Purkinje ...
Electrical activity of the heart. En: Berne RM, Levy MN, editores. Physiology. Third ed. St. Louis, Missouri: Mosby Year Book; 1997. p. 364-96.▸ Electrical activity of the heart (ECG)Julian, D.J., 1983. The electrical activity of the heart. The electrocar- diogram. In: ...
题目 ECG (electrocardiogram) is a test that measures the electrical activity of the heart.The heart is a muscular organ that beats in rhythm to pump the blood through the body.The signals that make the heart's muscle fibres contract come from the sinoatrial node,which is the natural pacemaker...
Thesinoatrial node, orSA node, is known as the natural pacemaker of the heart. It regulates the rhythm of the heart beat by generating an impulse that causes the heart muscle to contract. The faster these impulses are generated, the faster the heart will beat. In order to carry out is fu...
subsequent mechanical event. ECG has extremely valuable diagnostic tool in identifying a number cardiac abnormalities Analysis of ECG can determine abnormal heart rate or rhythm, abnormal conduction pathways, hypertrophy or atrophy of portion of the heart, and approximately location of damaged cardiac ...
Effect of verapamil studied by programmed electrical stimulation of the heart in patients with paroxysmal re-entrant supraventricular tachycardia. Atrioventricular (AV) conduction, ventriculoatrial (VA) conduction, and the mechanism of tachycardia, were studied by programmed electrical stimulation before and...
electrical conduction [iˈlektrikəl kənˈdʌkʃən] 释义 电导 实用场景例句 全部 The animation shows how the heart's internalelectrical conductionsystem causes the heart to pump blood. 心脏电系统控制了心脏输送血液时的所有动作....
of the heart.In an ECG test,the electrical impulses made while the heart is beating are recorded and usually shown on a piece of paper.This is known as an electrocardiogram,and records any problems with the heart's rhythm,and the conduction of the heart beat through the heart which may ...
conduction abnormalities in failing heartLV activation wavefrontThe development of Safety Critical Systems is guided by standards. Many standards require the development of a safety case to demonstrate the acceptability of Safety Critical Systems. The safety case must provide confidence that the system ...
美 英 un.导电率;电导 网络电传导;电传导性;电的传导 英汉 网络释义 un. 1. 导电率 2. 电导