ABSTRACT
Introduction 187 Regional Variability of in Vivo Elastic Properties 187 Conclusions 193 Acknowledgment 196 References 196
The skin performs numerous functions vital to the maintenance of homeostasis. Faced with a variety of extrinsic factors, such as physical trauma from the sun, wind, temperature changes, and the dynamic movements of the body, as well as the intrinsic aging process, its integrity is well preserved by a complex interaction of the three layers: epidermis, dermis, and subcutaneous tissue.
