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Fascia is a dense layer of connective tissue that runs through the whole body and surrounds muscles, muscle groups, blood vessels and nerves. Fascia is divided into several layers, which are called superficial fascia, deep fascia and visceral fascia, and they continue to run through the whole body.
Fascia is a kind of dense connective tissue, which contains tight and regular collagen fibers, and the direction of collagen fibers is along the direction of tensile force, so fascia has strong uniaxial tensile properties.