Cadaver dissection of the left face. Skin and subcutaneous tissue have been reflected medially. The zygomatic arch and the lower mandibular border are delineated with blue dots. The superficial-musculo-aponeurotic-system (SMAS) is continuous across the zygomatic arch with the superficial temporal fascia and blends with the orbicularis oculi. It lies in the same plane as the galea aponeurotica and frontalis muscle. The superficial-musculo-aponeurotic-system is muscular in the lower face being continuous with the platysma in the neck. Further cephalad it is fibro-fatty. Age and gender of the cadaver are unknown.