Respiratory system
Circulatory system
Digestive system
Musculoskeletal system
Nervous system
The job of this system is to break down food and change it so that food can enter the blood and get to cells
The job of this system is to carry gases between the outside air and your blood
This system controls how your muscles move your bones by carrying electrical signals from your brain, to your spinal cord, to your muscles
This system is a transportation system that carries food and oxygen to each cell and then takes away cells' wastes
This system supports the body, protects organs, makes blood cells and moves your body parts
