Learn what gas exchange is. Examine laws that affect diffusion and the partial pressure gradient, and identify how to calculate the partial pressure of oxygen.

Learn about gas exchange in the respiratory system. Explore the gas exchange system, the functions of gas exchange, and the important cells and organs involved.

In this lesson, we will examine blood flow in the lungs relative to gas exchange. Related topics to be explored include external and internal respiration, the dynamics of gas exchange between ...

Learn about internal respiration and external respiration, plus internal and external gas exchange. Find out in what area of the lungs does...

People need their lungs for gas exchange and to easily transfer gases between the blood and the air. Learn more about the gas exchange, the human respiratory system, and its functions.

Learn about gas exchange in our bite-sized video lesson. Watch now and discover how it works and the laws that affect it, plus a quiz to lock in your learning!

In the lungs, gas exchange occurs in small sacs called alveoli, which diffuse oxygen into the body and let carbon dioxide escape.

Structures and cells of the alveoli include alveolar sacs (collection of alveoli where gas exchange occurs), alveolar ducts (passageway from bronchioles to alveolar sacs), squamous alveolar cells ...

Internal Respiration Definition Internal respiration is the process of gas exchange that happens in the metabolizing tissues of the body, like muscles.

Discover the structure of respiratory membrane with our engaging video lesson. Watch now to understand its functions and test your knowledge with an optional quiz.