13 Questions About How the Human Body Works Answered: Media
Blood, brains, lungs, skin, and more.
Videos
Every minute, multiple liters of air are cycled through your lungs.
Video: Encyclopædia Britannica, Inc.
Images
The pulmonary veins and arteries in the human.
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Human blood stored for use in transfusion.
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Blood is made up of multiple components, including red blood cells, white blood cells,...
Encyclopædia Britannica, Inc.
Functional areas of the human brain.
Encyclopædia Britannica, Inc.
The diaphragm contracts and relaxes, forcing air in and out of the lungs.
Encyclopædia Britannica, Inc.
