Forms external body covering

Protects deeper tissue from injury and drying out

Sysnthesizes Vitamin D

Secretes salt in perspiration

Regulates body temperature

Location of cutaneous nerve receptors

Protects and supports body organs

Provides muscle attachment for movement

Site of blood cell formation

Stores minerals

Allows locomotion

Maintains posture

Produces heat

Fast-acting control system

Responds to internal and external change

Activates muscles and glands

Secretes regulatory hormones

Transports minerals in body via blood pumped by heart

Returns fluids to blood vessels

Disposes of debris

Involved in immunity- destroys bacteria and tumor cells

Keeps blood supplied with oxygen

Removes carbon dioxide

Another term for "Digestige Track"

Breaks down food

Allows for nutrient absorption into blood

Eliminates indigestible material

Eliminates nitrogenous wastes

Maintains acid-base balance

Regulation of materials

Production of offspring