Abstract
Three cases of m. corrugator posticus SANTORINI, aberrant muscle slips separated from the platysma, were observed among 58 Kyushu-Japanese. Two of them occurred bilaterally in the posterior neck region of a 73-year-old male cadaver. On his right side, the aberrant muscle slip was bifurcated. The other case was observed on the left side in the posterior neck region of a 76-year-old male cadaver and was also bifurcated. These muscle slips separated from the muscle fibers of the platysma.
