美容师理论考试大纲（Beautician theoretical examination outline）.docVIP

美容师理论考试大纲（Beautician theoretical examination outline） Beautician theoretical examination outline I. Basic knowledge of Dermatology 1, skin area: adult skin area of 1.5 - 2 square meters, thickness (not including subcutaneous fat layer) because of different parts, the average 2 - 2.2 mm 2, skin structure: the skin is divided into epidermis, dermis, and subcutaneous tissue three parts Epidermis: barrier function; epidermal structure: divided into five layers: stratum corneum, hyaline layer, granular layer, spinous layer, basal layer. Dermis: dermis is the essence of the skin, epidermis and dermis together to complete the function of the skin; dermal structure: collagen fibers, elastic fibers and matrix composition. Subcutaneous tissue: subcutaneous tissue plays a supporting role in the dermis and epidermis. 3. The appendages of the skin: Mainly located in the dermis: such as hair, claws, sebaceous glands, sweat glands, blood vessels, nerves, muscles, lymphatics 4, the epidermis and horny process: located in the basal layer cells following the continuous proliferation, formation of new cells, the new cells continuously goes up, turn into a spinous layer, granular layer, the transparent layer, and finally formed the cuticle (dead) off, this process is called keratinization or The new supersedes the old. I usually take 28 days to the new metabolism, called keratinization cycle. The keratinization cycle increases with age, whereas the facial skin shortens the keratinization cycle under external stimulation. 5, cuticle: can prevent water evaporation of the skin, protect the skin from external stimuli 6, dermis: collagen fibers and elastic fibers interlaced, forming a network of fabric, giving the skin elasticity and tension 7, the physiological function of the skin: 1, protective effect: with mechanical stimulation, physical damage, chemical damage, microbial protection; 2, regulate body temperature: this function mainly through the contraction and expansion of the subcuta