The Human Body System
By: Ava S.
The Circulatory System
The Respiratory System is in charge of your breathing. The Respiratory System breathes in oxygen and exhales carbon dioxide. In this system, there are 7 parts- Lungs, sinus cavity, trachea, bronchial, air sacs, and the diaphragm. First, the Respiratory System breathes in oxygen. It then goes into your larynx and into to your trachea witch split into two parts, the left side of your lunge and the right side of your lung. After it enters your trachea and the two sides of your lungs, it splits off into bronchi and bronchial tubes. Then, the oxygen goes into the tiny air sacs- or alveoli- where the blood picks up the oxygen and brings it to each cell in your body. There is also another important part of your respiratory system, your nasal passage. When there is dust particles or dirt in the air, your snot raps around the dust and dries to make boogers! I know what your thinking- disgusting- but it's the truth.
The Digestive System
The circulatory system serves as a transportation system to move food and oxygen to each cell in your body.
The respiratory system picture breaths in oxygen and exhales carbon dioxide.
The digestive system breaks down food so that nutrients can be carried to each cell in the body
Respiratory System Picture- http://kids.britannica.com/comptons/art-54227/Shown-aboveare-the-major-components-of-the-human-respiratory
Digestive System Picture- http://knowyourliver.net/digestive-system-unlabeled-for-kids.html