Activity Chapter 7 Worksheet

A type of melanin that is dark brown to black in color. People with dark-colored skin mostly produce this. These are two types of melanin; the other type is pheomelanin
Thickening of the skin causedd by continued, repeated pressure on any part of the skin, especially the hands and feet
Small involuntary muscles in the base of the hair follicle that cause goose flesh, sometimes goose bumps and papillae.
Sebum or oil that lubricates the skin keeping it soft and pliable, oil keeps hair soft, emotional stress can increase the flow of sebum
Prespiration from the sweat glands is eliminated through skin, water lost through perspirations takes salt and other chemicals with it
The skin shields the body from injury and bacterial invasion, outermost layer of the epidermis is covered with a thin layer of sebum, thus rendering it waterproof, resistant to wide variations in temperature, minor injuries, chemically active substances, and many forms of bacteria
The skin protects the body from the environment. A healthy body maintains a constant internal temperatue of about 98.6 degrees Fahrenheit. As changes occure in the outside temperature, the blood and sudorigerous glands of the skin make it necessary adjustments to allow the body to be cooled by the evaporation of sweat.
Supports the overall health of the skin: aids in the health , function, and repair of the skin cells; as been shown to improve the skin's elasticity and thickness.
There are six classes of nutrients that the body needs, Carbohydrates, Vitamins, Fats, Minerals, Water and
The skin contains the surface endings of the following nerve fibers are motor nerve fibers, Secretory nerve fibers and