Purkinje fibers


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Related to Purkinje fibers: atrioventricular node, bundle of His, Purkinje cells

Purkinje fibers

[pər′kin·jē ‚fī·bərz]
(histology)
Modified cardiac muscle fibers composing the terminal portion of the conducting system of the heart.
References in periodicals archive ?
Major arrhythmias caused by chronic chloroquine use have been related to a significant reduction in the cardiac rate, increases in the action potential duration and refractory period of Purkinje fibers (7).
Neurons from the contralateral vestibular nuclei and Purkinje fibers from the cerebellum are believed to exert their inhibitory effects via this GABAergic system.
The electrical impulses split here into the right and left bundles that travel through each side of the ventricles and wind up in the Purkinje Fibers which cause the ventricle to contract.