500
Explain how the Respiratory System works using the terms "breath" "nose" "oxygen" "trachea" "bronchiole tubes" "alveoli" "lungs" and "diaphragm"
What is you breath oxygen through your nose. This oxygen travels down your trachea and into the bronchiole tubes, which break into 2 parts that then enter the lungs. The oxygen then travels to the air sacs at the end of the bronchiole tubes called the alveoli. Everytime you breathe in, you diaphragm goes down, allowing your lungs to expand, and oxygen to fill your lungs. When you breathe out, you diaphragm goes up, allowng CO2 to be exhaled from the body.