1) What is the main role of the respiratory system? 2) Name two pathways for air to get into the lungs 3) What gas do we breathe in? 4) Why is the level of CO2 higher in expired air? 5) Name the muscles that are located between the ribs 6) Gaseous exchange take place where? 7) By what process does gaseous exchange take place? Can you explain how it works? 8) What is inspiration also know as? 9) What is expiration also known as? 10) Define tidal volume 11) Define vital capacity 12) Describe what happens to the lungs, diaphragm and rib cage during inspiration 13) Describe what happens to the rib cage, lungs and diaphragm during expiration 14) How does the large surface area of capillaries around the Alveoli help with gaseous exchange? 15) Explain why the level of O2 in expired air is lower than in inspired air 16) What is the windpipe also known as? 17) Describe the pathway of air from nose or mouth to the lungs 18) what type of training helps to increase the number of Alveoli present in the lungs? 19) As we breathe air in through our nose, what 3 things happen to the air we breathe in before reaching the lungs?

Respiratory System

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