Signs - Facial aging can be a symbol of maturity and wisdom...

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Facial aging can be a symbol of maturity and wisdom for some, while others view it as the signal to the end of being young. During the 19 th and 20 th Centuries, physicians have incorporated such cosmetic recipes into the practices of dermatology and plastic surgery, developing a treatment known as “chemexfoliation” or “chemical peel.” Dermabrasion techniques was developed in the mid-1950s; more recently, state-of-the-art carbon dioxide medical lasers, which are usually equipped with a computer-controlled device that delivers laser energy, have been used to resurface aging skin. A basic understanding of the layers and function of skin, different types of treatment options, and potential outcomes will be discussed, all which can help stop the signs of aging. As a prerequisite to developing an understanding of the treatment techniques available today-including chemexfoliation, dermabrasion, chemabrasion, and laser resurfacing as well as therapeutic and prophylactic applications-one must have a basic knowledge of the structure and function of the skin and the causes of aging skin. Squamous epithelial cells-which form the epidermis; outer layer of skin, as stratified squamous epithelium- differentiate as they move from the basal layer (stratum germinativum) to the outermost layer (stratum corneum). They function with lipids in a brick-and-mortar fashion, forming a physical barrier to the external environment. Melanocytes, also found in the epidermis, produce melanin (pigment): Hyperpigmentation is seen when melanocytes increase in numbers or activity. The dermis (the layer of the skin directly under the epidermis) consists mostly of fibrous connective tissue, which is composed of collagen, elastic, and glycosaminoglycan’s (GAGs) which are formed by the dermal fibroblasts. Collagen provides tensile strength; resiliency is provided by the elastin, and the GAGs provide the normal tension of the extracellular space (by their large volume when well-hydrated). Hair follicles, eccrine and sebaceous glands, peripheral-nerve endings, and blood vessels are also found in the dermis.
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This note was uploaded on 11/26/2011 for the course HCA 220 taught by Professor James during the Spring '08 term at University of Phoenix.

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Signs - Facial aging can be a symbol of maturity and wisdom...

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