Purkinje fiber


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Purkinje fiber

n.
One of the specialized cardiac muscle fibers, part of the impulse-conducting network of the heart, that rapidly transmit impulses from the atrioventricular node to the ventricles.

Purkinje fiber

A cardiac muscle cell beneath the endocardium of the ventricles of the heart. These extend from the bundle branches to the ventricular myocardium and form the last part of the cardiac conduction system.

Purkinje

named after J.E. Purkinje, Bohemian anatomist (1787-1869).

Purkinje cell
neuronal cell bodies in the middle layer of the cerebellar cortex; characterized by a large, globose body and massive, branching dendrites but a single, slender axon.
Purkinje fiber
modified cardiac muscle fibers in the subendothelial tissue, concerned with conducting impulses through the heart.
P's image, Purkinje-Sanson images
in a normal eye, reflections of light off the surface of the cornea, anterior lens capsule, and posterior lens capsule. When viewed from different angles, can be used to localize intraocular opacities.
Purkinje network
a reticulum of modified muscle fibers in the subendocardial tissue of the cardiac ventricles.
Purkinje neuron
see Purkinje cell (above).
References in periodicals archive ?
The heart consists of different types of cells such as myocytes, fibroblast, adiopocytes and purkinje fibers, which are all needed for normal cardiac activity.
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).