Purkinje fibers in Cardiac muscle
CARDIOVASCULAR IMAGE INDEX / CARDIOVASCULAR STUDY GUIDE
Purkinje fibers are cardiac muscle fibers specialized for electrical conduction. As seen here, Purkinje fibers are somewhat larger and have paler cytoplasm (i.e., with relatively fewer myofibrils) than ordinary cardiac muscle.
Historical note: Purkinje fibers were named after Johann Purkinje, b. 1787).
Click on thumbnail for an image of ordinary cardiac muscle.
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Last updated: 25 May 2022 / dgk