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Purkinje Fibers in the Moderator Band. Longitudinal Section.
Description:The moderator band, found in the right ventricle, contains bundles o Purkinje fibers. This is a longitudinal section of part of the structure. The Purkinje cells are modified cardiac muscle fibers which conduct impulse from the AV node. These cells are larger and lighter in staining than the regular cardiac muscle fibers that make up the rest of the band. What is another name for the moderator band? Notice the musculr artery in the tissue. Original mag. 10x Masson trichrome. Purkinje fibers. Heart. Circulatory System. Sheep.