The respiratory system has two main functions: to supply blood with oxygen and remove carbon dioxide. It has an upper respiratory tract that warms and filters air and a lower tract that includes the trachea and lungs. The lungs contain millions of alveoli that absorb oxygen and release carbon dioxide and have a sponge-like structure.

1. Respiratory System (pg 10)

2. Respiratory System (pg 10)
• Function: To supply the blood with oxygen and
get rid of carbon dioxide

3. Respiratory System (pg 10)
• Function: To supply the blood with oxygen and
get rid of carbon dioxide
• Oxygen is needed to for cellular respiration
(turning food into energy) which produces
carbon dioxide as a waste product

4. Parts
• Upper Respiratory Tract

5. Parts
• Upper Respiratory Tract
1. Nasal cavity: warms and moistens air, traps
dust

6. Parts
• Upper Respiratory Tract
1. Nasal cavity: warms and moistens air, traps
dust
2. Throat: Passageway for air and food

7. Parts
• Upper Respiratory Tract
1. Nasal cavity: warms and moistens air, traps
dust
2. Throat: Passageway for air and food
3. Larynx: Voicebox. Contains vocal cords

8. • Lower Respiratory Tract

9. • Lower Respiratory Tract
1. Trachea: Windpipe

10. • Lower Respiratory Tract
1. Trachea: Windpipe
2. Lungs

11. Lungs
• Right lung is larger and has 3 lobes. Left lung
only has 2 (to make room for the heart)

12. Lungs
• Right lung is larger and has 3 lobes. Left lung
only has 2 (to make room for the heart)
• Contain millions of tiny air sacs called alveoli

13. Lungs
• Right lung is larger and has 3 lobes. Left lung
only has 2 (to make room for the heart)
• Contain millions of tiny air sacs called alveoli
• Lungs are like sponges, not balloons

14. Pick one of the following lung diseases:
Lung cancer
Emphysema
Chronic obstructive pulmonary disease (COPD)
Asthma
Pneumonia
Pneumothorax (collapsed lung)
Pulmonary embolism
Cystic fibrosis
Tuberculosis
Acute bronchitis