Teachers.io

1. Distinguish between pulmonary ventilation, external and internal respiration 3 marks 

2. The lungs have no skeletal tissue so how do they increase in size on breathing in 2 marks 

3. Identify the muscles used in respiration at rest 2 marks

4. How are O2 and CO2 transported in the body 2 marks

5. Identify and explain four factors that influence the efficiency of gaseous exchange between the lungs and pulmonary capillaries 4 marks