protective block

pro·tec·tive block

an incompletely understood mechanism whereby a pacemaker is protected from being discharged by the impulse from another center; the mechanism, usually conceived as an encircling zone of unidirectionally refractory tissue permitting egress of impulses from the center but preventing access to the center, is seen in operation in ventricular parasystole where the parasystolic center is protected from discharge by the sinus pacemaker and so is able to maintain its intrinsic rhythm undisturbed. Synonym(s): entrance block, protection

单词	protective block
释义	DictionarySeeprotection protective block pro·tec·tive block an incompletely understood mechanism whereby a pacemaker is protected from being discharged by the impulse from another center; the mechanism, usually conceived as an encircling zone of unidirectionally refractory tissue permitting egress of impulses from the center but preventing access to the center, is seen in operation in ventricular parasystole where the parasystolic center is protected from discharge by the sinus pacemaker and so is able to maintain its intrinsic rhythm undisturbed. Synonym(s): entrance block, protection FinancialSeeProtection
随便看	racine kenosha builders association racine lutheran high school racine municipal employees credit union racine mutual housing association racine parochial athletic league racine public library racines racines et rameaux français d'acadie raciness racine united arts fund racine, wi usa - batten airport racine youthful offender correctional facility racine youth sports racing racing against racing and fun server racing and wagering board racing and wagering western australia racing around racing auto japan racing automobile club courcellois racing blondel bollène racing boat racing car racing-car