Gas exchange Flashcards
1
Q
Where does gas exchange occur?
A
It occurs in the alveoli which are little sacs located in the lungs.
1
Q
useful video to understand it all:
A
https://www.youtube.com/watch?v=B44n2SMLv-s
2
Q
What is gas exchange?
A
Gas exchange is the process by which oxygen and carbon dioxide move between the bloodstream and the lungs.
3
Q
How does oxygen get into our body?
A
When we breathe in through the mouth or nose the oxygen goes down our trachea.
4
Q
What adaptation do alveoli have?
A
They have a LARGE SURFACE AREA to enable more of oxygen into the blood from the alveoli.
They also have MOIST WALLS which help them to pass across the gas exchange surface.
