Gas Exchange

Question 1

What are the steps of gas exchange

Answer 1

1. The air containing oxygen and other gases come into the body through the lungs

2. In the lungs the oxygen is moved into the bloodstream and carried through the body

3. Red blood cells collect the carbon dioxide and transported back to the lungs when it leaves the body when we exhale

Question 2

what are things to remember about gas exchange?

Answer 2

once air has been inhaled, it passes through airways until it reaches alveoli

alveolus surrounded by capillaries through which the gases enter and exit

Co2 entered alveolis, oxygen extracted and passed back into body

constant blood flow prevents saturation of blood, optimal transfer