The skeletal system supports our body and gives it a shape. It also protects some of the other important organs in our body. Together with the muscular system, they helps us to move different parts of our body.

The respiratory system consists of the nose, windpipe and the lungs. It helps us to breathe in and breathe out air.

The circulatory system consists of the heart, blood vessels and blood. It is responsible for transporting oxygen, digested food, water, carbon dioxide and other substances around your body.

The digestive system is made up of the mouth, gullet (or esophagus), stomach, the small and large intestines and the anus.

It is responsible for breaking up food into simple substances that our body can absorb and use.