Human Body facts brings interesting facts concerning your body. Did you know for example that an adult heart pumps more than 4000 gallons of blood every day? Or that the surface area of a human lung is equal to that of a tennis court?

The human body is composed of many different types of cells that together create tissues and subsequently organ systems such as head, neck, thorax ear aye arms and hands, legs and feet. The five vital organs essential for human survival are the brain, heart, kidneys, liver and lungs. The study of the human body involves anatomy, physiology, histology and embryology. The body varies anatomically in known ways.