Muscle tissue is cased in a material made up of connective tissue called fascia. Inside the fascia are bundles of muscle fibers known as fasciculus that are directly responsible for muscle function. Individual muscle fibers are multinucleated and striated, surrounded by a material called perimysium. read more
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Tetanic contractions of muscles are smooth and prolonged muscle contractions which can be slight or vigorous depending on what work has to be done.; Complete tetanus is a smooth continuous contraction without any evidence of relaxation and results from a very rapid rate of stimulation. read more