The human body is made up of thousands of parts, such as glands, muscles, bones, pieces of cartilage, and organs. These parts work together to keep the body breathing and make sure blood is pumping at all times. Read articles in this topic to learn about the parts of the human body and how they function.
Embark on a fascinating voyage of discovery with a collection of extraordinary photographs of different types of human cells. Here you will get intimately acquainted with the microscopic world beneath your skin.
Many of our body’s actions are initiated and regulated by an army of chemicals known as hormones. They are part of internal communication system that lets cells ‘talk’ to each other. This guide introduces you to some key hormones and...
Normally you don't give it a second thought, but every breath you take is vital and the oxygen it contains travels through a complex system to your body's cells. This guide to the respiratory system explores its structures and functions, what...
Your circulatory system is a vast network responsible for transporting blood, fighting infections and providing the body with the nutrients it needs. Learn how this complex system works, what happens when it goes wrong and how problems are detected.
September 19, 2011
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