Circulatory and pulmonary systems

1 article
4 videos
As humans, we really like breathing oxygen. That's because the cells in our body will die if they don't get the oxygen they need to function. This tutorial describes how gases are exchanged between blood and the atmosphere in our lungs, and how oxygen is then pumped through the body by way of blood and the circulatory system.

The lungs and pulmonary system

VIDEO 20:33 minutes
The pulmonary system including the lungs, larynx, trachea, bronchi, bronchioles, alveoli and thoracic diaphragm.

Red blood cells

VIDEO 16:30 minutes
Oxygen uptake by hemoglobin in red blood cells.

Circulatory system and the heart

VIDEO 14:57 minutes
Introduction to the circulatory system and the heart.


VIDEO 14:34 minutes
Hemoglobin and its role in the circulatory system.

Components of blood

The different components that make up blood. Plasma, white blood cells, red blood cells, platelets.