This system converts food into simpler substances that our body can use.
Skeletal and muscular system
This system takes oxygen we need from the air and expels carbon dioxide.
Composed by bones, muscles and the linking elements.
This system carries bloodwith oxygen and nutrients all over the body and collects waste substances and carbon dioxide.
Respiratory system
Circulatory system
Excretory system
This system cleans the blood of substances of waste.
Nervous system
This system sends the orders to all the organism through nerve impulses
Digestive system
