Gaseous Exchange Flashcards
Where does external gas exchange occur
Alveoli
Where does internal gas exchange take place
Muscle tissue
In the alveoli there is a high … … of oxygen
Fill in the blanks
Partial pressure
In the … there is a low partial pressure of oxygen
Fill in the blank
blood
What is it called when there is a difference in partial pressure in between different parts of the body
Diffusion/Concentration Gradient
What are the partial pressures of carbon dioxide in the alveoli and bloodstream
Alveoli-Low
Bloodstream-high
How does oxygen and carbon dioxide move between the alveoli and the bloodstream
Diffusion
During exercise,what happens to the concentration gradient
It gets steeper,it increases
In the muscle, there is a … partial pressure of oxygen and a … partial pressure of carbon dioxide
1.Low
2.High
At the muscles,the blood has a high partial pressure of … and a low partial pressure of …
1.oxygen
2.carbon dioxide
Give characteristic of alveoli that helps with gas exchange
-large surface are
-thin walls
-high blood supply
-moist
What is diffusion
The movement of particles from an area of high concentration to an area of low concentration
