The Human Body System

By Bella Olson

Circulatory System

The circulatory System is when it moves the oxygen around the body.This system includes the heart, blood,Arteries which caries the blood away from the heart,veins ,and the capillaries. . Also the digestive helps the system because it breaks down the food so the circulatory system can circulate.

Respiratory system

The respiratory system is when the lungs breathe in oxygen so the blood can circulate. It includes the lungs, sinus cavity, trachea, bronchial tubes, bronchi-oles, air sac, and the diaphragm.The circulatory system helps the respiratory system because it helps it move the oxygen around the body.

Digestive System

The digestive system is when it breaks down your food and nutrients. This system includes the Teeth, tongue, salivary glands, epiglottis, esophagus, stomach, small intestine, large intestine, and the colon. The circulatory system helps the digestive system because when the food is broken down then the circulatory system comes in and it takes the nutrients to be moved to the body cells.


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