Anatomy & Physiology

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.

Quiz: Learn About the Circulatory System

The circulatory system distributes blood, oxygen, and various types of nutrients around the body. How much more do you know about the circulatory system? Test yourself with this quiz and find out!

Exploring the Cell: A Photo Gallery

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.

Layman’s Guide to the Respiratory System

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 happens when things go wrong, and how they can be fixed.

Types of Human Growth Hormone (HGH) Treatments

Different types of human growth hormone (HGH) treatments are available, ranging from FDA regulated injections to homeopathic sprays. HGH can be used to treat a variety of ailments stemming from improper growth hormone levels in the body, and is thought by some to be a fountain of youth.