Skin Care State Board Theory Practice Test

The skin and its associated structures function mainly as a protective barrier for the body and as a regulator of temperature. The integumentary system forms a physical shield against injury and infection, helps prevent dehydration, and contains sweat glands and blood vessels that regulate heat by cooling the body when we sweat and by adjusting blood flow near the surface. It also provides sensory information through nerves and aids in vitamin D production. Because of these roles, protecting the body and maintaining temperature are the best descriptions of its primary purpose. The other options point to functions of different systems: hormones relate to the endocrine system, structural support to the skeletal/muscular systems, and pumping blood to the circulatory system.