Body systems are groups of organs that can be grouped together according to what they do.
Body systems work together to carry out the vital functions of nutrition, interaction and reproduction.
Which body systems take part in nutrition?
1. CIRCULATORY SYSTEM
Our circulatory system is like a transport system. The circulatory system helps move blood around our bodies.
Blood carries oxygen and nutrients around our bodies.
It carries away waste substances.
2. DIGESTIVE SYSTEM
The digestive system breaks down and digests food and liquids. It helps our bodies absorb nutrients.
3. RESPIRATORY SYSTEM
The respiratory system is how we absorb oxygen from the air. We also expel carbon dioxide.
4. EXCRETORY SYSTEM
The excretory system is how we extract waste substances from the blood and expel them as liquids from our bodies.
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