The respiratory system is responsible for the exchange of gases that allows the body to perform important functions. How does oxygen diffuse within the lungs?

a.

It diffuses from the capillaries into the veins.

c.

It diffuses from the alveoli into the blood.

b.

It diffuses from the arteries into the capillaries.

d.

It diffuses from the blood into the alveoli.

Question

The respiratory system is responsible for the exchange of gases that allows the body to perform important functions. How does oxygen diffuse within the lungs?
 



a.
 

It diffuses from the capillaries into the veins.
 

c.
 

It diffuses from the alveoli into the blood.
 



b.
 

It diffuses from the arteries into the capillaries.
 

d.
 

It diffuses from the blood into the alveoli.

abhisar · Answer

It diffuses from the alveoli into the blood.

abhisar · Answer

An alveolus is an anatomical structure that has the form of a hollow cavity. Found in the lung parenchyma, the pulmonary alveoli are the terminal ends of the respiratory tree, which outcrop from either alveolar sacs or alveolar ducts, which are both sites of gas exchange with the blood as well.