4. Match each part of the respiratory system with a function it carries out. Part of respiratory system
Function 1. Nose
2. Trachea 3. Bronchus 4. Pharynx
5. Intercostal muscles 6. Ribcage 7. Lungs
8. Diaphragm a. Allow air to flow into and out of lungs
b. Opening for respiratory and digestive systems c. Supply oxygen to cells
d. Protects the heart and lungs e. Removes dust and micro-organisms
f. Contracts and relaxes to move air in and out of the lungs g. Move the ribs
h. Allows air to flow to the bronchus 5. Fig. 8.10 shows a model of the respiratory system.
)Fig. 8.10
Identify the parts of the respiratory system represented by: a. the yellow balloons b. the Y-shaped tube c. the bell jar d. the pink balloon
6. a. Explain the term ‘diffusion’.
b. Give one example of diffusion that takes place in the respiratory system by identifying the gas and location.
7. Outline two ways alveoli are suited to their job in the respiratory system.
8. The following table shows the percentage of carbon dioxide in the breath of a person during different levels of physical activity: Level of physical activity