| A | B |
|---|
| diaphram | Dome shaped muscle that aids in breathing. |
| vocal cords | A fold of tissue that stretched accross the larynx that vibrates with the movement of air to form sounds. |
| larynx | The box shaped structure that contains your vocal cords. |
| cilia | The tiny hair like structures that line the nasal cavity and trachea. |
| trachea | Structure that carries air from the nose to the lungs. |
| nose | The part of the respiratory system responsible for warming, cleaning and moistening the air. |
| epiglottis | A small flap of tissue that closes over the wind pipe or trachea. |
| mucus | The substance that lines the walls of the trachea which traps remaining dust particles and unwanted bacteria. |
| bronchi | The right and left tubes that branch off of the trachea and enter the lungs. |
| lung | The main respratory organ. |
| alveoli | The grapelike clusters of microscopic round sacs in the lungs where gases are exchanged. |
| oxygen | The gas that the respiratory system takes in to nourish the body. |
| carbon dioxide | The gas that the respiratory system exhales as waste. |
| bronchial tubes | Where the bronchi break down into smaller and smaller tubes. |
| capillaries | Oxygen passes through the alveoli into these. These are the link between the respiratory and circularory systems. |
