THE DIGESTIVE SYSTEM 3r

The digestive system is a group of organs that work together to help us digest food.

+ We take in food through our mouth.

+ It passes down into our stomach and intestine.

+ The intestine separates the nutrients from the waste and expels the waste from our body.

+ The nutrients are passed to the circulatory system, where they move around the body.

THE RESPIRATORY SYSTEM 3r

The respiratory system is a group of organs that work together to help us breathe.

+ We breathe in air through our nose and mouth.

+ The air goes down into our lungs.

+ Oxygen is passed to the circulatory system, where it moves around the body.

+ We breathe in oxygen and breathe out carbon dioxide.

THE CIRCULATORY SYSTEM 3r

The circulatory system moves blood through the heart and around the body in the arteries and veins. Blood gives our body nutrients and oxigen.