Heart Muscle Cell #2
by Medimage/science Photo Library
Title
Heart Muscle Cell #2
Artist
Medimage/science Photo Library
Medium
Photograph - Photograph
Description
Heart muscle cell. Coloured transmission electron micrograph of a heart muscle cell (cardiomyocyte), showing enormous numbers of mitochondria (blue), required for a constant energy supply to sustain heart muscle contractions. Myofilament proteins (light blue), made up of mysosin and actin, enable the muscle to contract. All cardiomyocytes are joined end-to-end by special intercellular junctions. Gap junctions enable cell-to-cell electrical conduction which is the basis for the coordinated and rhythmic contraction of heart muscle.
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September 15th, 2018
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