The Human Body Anatomy, Facts Functions Live Science The human body contains nearly trillion cells There are at least times as many bacteria in the human body as cells The average adult takes over , breaths a day. human body Description, Anatomy, Facts Britannica Characteristic of the vertebrate form, the human body has an internal skeleton that includes a backbone of vertebrae Typical of mammalian structure, the human body shows such characteristics as hair, mammary glands, and highly developed sense organs Beyond these similarities, however, lie some profound differences. Human body The Human Body healthline The human body systems Different organs can work together to perform a common function, like how the parts of your digestive system break down food We refer to an integrated unit as an organ system. Facts and Information About the Human Body Human Body The human body performs amazing feats every day, from sending signals rocketing through the brain at high speed to distributing oxygen over , miles , kilometers of airways. The Human Body Full color photos catalog the various structures and components that make up the human body Through these, as well as dramatic x rays and fascinating electron microscope images, you ll gain a new understanding and appreciation for the human body and have a fabulous time listening, reading, and learning how the human body works.