Blood: transported through by cells.
arteries: transport blood away the heart.
veins: transport blood from to the heart.
capillaries: exchange takes place.
heart: pumps blood.
kidney: produce more urine
transmitters: carry communications.
white cells: protect against disease
red cells: transport oxygen:
homeostasis: maintain composition
brain: protect skull
spinal cord: long and fragile
lungs: help in oxygen transportation
digestive system: runs from mouth to anus
respiratory system: responsible for breathing