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Respiratory System
| Question | Answer |
|---|---|
| respiration | breathing; the transport of oxygen from outside the body to cells and tissues AND the transport of carbon dioxide and wastes away from the cells and tissues to the environment |
| inhale | to breathe in |
| exhale | to breathe out |
| diaphragm | the domed shaped muscle that makes us breathe |
| lung | tissue that inflates and deflates with air; the alveoli are located in the lungs where the gases are exchanged |
| nasal cavity | nose; warms, moistens, and filters the air we breathe |
| pharynx | passageway for food, air, and liquid |
| larynx | holds our vocal cords |
| trachea | wind pipe; surrounded by cartilage for protection |
| bronchus (bronchi) | when the trachea splits into 2 air ways, each side leading to a lung |
| bronchiole | the branches off of each bronchus that lead to the alveoli |
| epiglottis | flap of tissue above the larynx that covers the air pipe when you swallow. Prevents food and liquid from entering the lungs |
| alveolus (alveoli) | sacs surrounded by capillaries where the oxygen and carbon dioxide are exchanged in the lungs |
| What is the main function of the respiratory system? | exchange gases between the organism and its environment |
| What specific structure is the site of the gas exchange? | the alveoli |
| What type of blood vessels surround the alveoli? | capillaries |
| What muscle makes us breath? | diaphragm |
| Do the lungs move on their own? | No the diaphragm pulls air into the lungs and pushes the air out |
| Explain how the respiratory system and circulatory system interact? | The respiratory system brings air into and out of our body. The circulatory system transports the CO2 and O2 around our body. They interact when the alveoli and the capillaries exchange these 2 gases |
Created by:
mvanderb
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