The lungs
- Created by: cassiarh01
- Created on: 17-04-18 17:07
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- The Lungs
- Air moves in & out of the lungs
- The air you breathe in goes through the trachea
- Passes through the bronchi, then bronchioles and ends up in the alveoli
- Alveoli carry out gas exchange
- Surrounded by blood capillaries
- Blood comes into the lungs through the capillaries containing lots of CO2 and very little O2
- O2 diffuses out of the air (higher concentration) into the alveolus into the blood (lower concentration)
- Blood then leaves the lungs and travels around the body
- CO2 diffuses out of the blood (higher concentration) into the air in the alveolus (lower concentration)
- Blood then leaves the lungs and travels around the body
- CO2 diffuses out of the blood (higher concentration) into the air in the alveolus (lower concentration)
- O2 diffuses out of the air (higher concentration) into the alveolus into the blood (lower concentration)
- Calculate the breathing rate
- breaths per minute = number of breaths / number of minutes
- Air moves in & out of the lungs
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