transports nutrients, chemical messengers, gases and wastes in blood
adds oxygen to the blood and removes carbon dioxide from blood.
breaks down food into units that can be absorbed by the body
removes wastes, maintains body fluid volume, pH and electrolyte levels.
provides a protective barrier for the body, contains sensory receptors for pain, touch, temperature
returns fluid to cardiovascular system, detects, filters, and eliminates disease causing organisms.
protects major organs, provides levers and support for body movement
moves bones and maintains posture
controls cell function with electrical signals
controls cell function with hormones
produces gametes, female organs provide environment for development of fetus