Introduction to Respiratory System

📋 Course Outline

1. Respiration rate and daily lung ventilation
2. Respiratory and circulatory system coordination
3. Main respiratory system structures and airflow path
4. Trachea support and branching to alveoli
5. Gas exchange in alveoli and capillaries
6. Breathing mechanics and CO2 control
7. Respiratory systems in other animals
8. Tuberculosis symptoms, transmission and diagnosis
9. Asthma bronchioles constriction and inhaler relief
10. Emphysema alveoli damage from smoking
11. Pneumonia alveoli fluid and causes
12. Bronchitis inflammation and typical recovery

📖 1. Respiration rate and daily lung ventilation

🔑 Key Concepts & Definitions

• Respiration rate : Respiration rate is the number of breaths taken per minute during breathing.
• Daily lung ventilation : Daily lung ventilation is the total volume of air moved into and out of the lungs each day.
• O2 delivery : O2 delivery is the role of the respiratory system in supplying oxygen to body cells.
• CO2 removal : CO2 removal is the role of the respiratory system in getting carbon dioxide out of the body.

📝 Essential Points

• Breathing occurs about 15 times per minute at rest.
• Physical activity increases breathing rate compared with rest.
• On average, the lungs move about 10,000 L of air in and out each day.
• The respiratory system supplies O2 to cells and removes CO2 from the body.
• Breathing volume and rate change with the body’s needs, especially during activity.