Purkinje fiber

Purkinje fiber

n.

Any 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.

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Purkinje

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

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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).