Function: Protects The body by preventing loss of water, holds moisture in.
Protects from injury and
infection, keeps stuff in and out.
Helps regulate the body temperature, thermoregulator.
Eliminates waste, sweat.
information about the environment, through nerves. (pressure, pain & temp.)
Produces Vitamin D (sunlight needed)
Structure: Two layered
Epidermis: outermost layer. Epitheleal tissue.
Has no nerves
or blood vessels. Thin layer (2mm)
Melanin: in epidermis. Produces
color substance pigment
the more melanin, the darker the skin.
Exposure to the sun stimulates melanin production.
Dermis: Lower layer of skin. Thicker than epidermis.
tissue. Has nerves and blood vessels.
Feels heat, cold, pain and pressure. Hands, lips and soles have most nerves.