The Gas Exchange Flashcards
1
Q
The walls of the alveoli and capillaries are…
A
one cell thick
2
Q
Step 1
A
The blood begins its journey through the capillaries which are wrapped around the alveoli with CO2 in them.
3
Q
Step 2
A
As blood moves through the capillaries, oxygen attaches itself to hemoglobin (hemo -blood) of a red blood cell.
4
Q
Step 3
A
At the same time, the red blood cell is dropping off CO2
