The Respiratory System
- Created by: faske16
- Created on: 16-10-16 20:54
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- The Respiratory System
- During exercise, the body needs to take in a sufficient supply of oxygen and eliminate the carbon dioxide by the working muscles.
- The harder and longer the physical activity = more oxygen is needed to keep the muscles working.
- The harder and longer the physical activity = more carbon dioxide is produced.
- Breathing In = Inhaling
- 1) The intercosfall muscle contract
- 2) Chest lifts upwards and outwards
- 3) Diaphragm tightens and lowers
- 2) Chest lifts upwards and outwards
- Air from the nose and the mouth is warmed, moistened and filtered
- 1) The intercosfall muscle contract
- Breathing Out = Exhaling
- How it works
- 1)Air passes through the Trachea
- 2) Travels Through the bronchi
- 3) Passes through the bronchioles
- 4) Passes into millions of tiny sacs called alveoli
- 5) Which are surrounded by capillaries
- 6) Then oxygen passes into the blood
- 5) Which are surrounded by capillaries
- 4) Passes into millions of tiny sacs called alveoli
- 3) Passes through the bronchioles
- 2) Travels Through the bronchi
- 1)Air passes through the Trachea
- Key Terms!
- Oxygen Debt = Working very hard Means the body needs more oxygen than it can get
- Gaseous Exchange = Oxygen is breathed in and carbon dioxide is breathed out.
- Tidal volume = Amount of air inspired and expired with each normal breath during rest or exercise.
- Vital Capacity = Greatest amount of air that can be made to pass into and out of the lungs by the most forceful inspiration and expiration. (4 to 5 liters approx)
- During exercise, the body needs to take in a sufficient supply of oxygen and eliminate the carbon dioxide by the working muscles.
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