"superficial musculoaponeurotic system". It is the name used for the procedure in which the surgeon lifts and stretches the skin from the underlying facial muscles.
The superficial musculoaponeurotic system (SMAS) is a layer of tissue that covers the deeper structures in the cheek area and is in continuity with the superficial muscle covering the lower face and neck, called the platysma. Some facelift techniques lift and reposition the SMAS as well as the skin.
(As in SMAS facelift) Superficial Musculo Aponeurotic System - The skin on the face is comprised of the superficial epidermal-dermal layer, the underlying subcutaneous fat, and beneath them, a gliding membrane composed partly of fibro-elastic connective tissue and partly of muscle. This gliding connective tissue membrane layer is called the Superficial Musculo Aponeurotic System or SMAS. - Acronyms/Abbreviations