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Papillary muscle allows measurements too difficult or impossible to perform in whole hearts. Similarly, unlike single isolated myocytes, which represent the smallest fully functional model system, intact papillary muscle can be used to study cardiac function within a multicellular context and an intact 3-dimensional myofilament lattice. This video tutorial demonstrates dissection of the rat heart left ventricle and removal of the papillary muscles.

For more system information, please visit the Small Intact Muscle System product page and manual.