Research Paper on:
Overview of the Human Integument or Skin System

Unformatted Sample Text from the Research Paper:
We all too often tend to regard our skin as an inconsequential wrapper for the remainder of our bodys organs. In reality, our skin too is an  organ. Technically referred to as the integument, our skin is quite complex in regard to its physiologic function. It has numerous subcomponents which are loosely divided into two  main layers of tissue: the epidermis and the dermis. The epidermis is the thinner of these two layers. It lies on the outside of the body and  is that part of the integument with which we are most familiar. The thicker inner layer is the dermis. A variety of factors can affect both the dermis  and the epidermis. These factors include such internal factors as an individuals genetic makeup and external factors such as exposure to disease causing agents.  Unlike the dermis and the bodys other organs, the epidermis has no blood vessels. The main function of the epidermis is to provide a protective covering for  the rest of the body. It is connected, however, to the dermis by a series of bump-like projections called the papillae. Melanin is present in the dermis and  gives the skin its characteristic color which varies according to the individuals race but which functions to protect the body from the rays of the sun. In addition to  blood vessels and melanin, the dermal layer is also home to lymph channels, nerve endings, sweat glands, sebaceous glands, fat cells, hair follicles, and muscles. The nerve endings of the  dermis function in the sensation of various external stimuli while the dermal muscles function in causing body hair to stand erect in response to some of the same stimuli.