Human body

Part of a series of lists about
Human anatomy
General Features Regions Variations Movements Systems
Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins
Muscles Abductors Adductors Depressors Elevators Extensors Flexors Rotators external internal
See also Glossary of medicine Epithelia Anatomical terminology Index of anatomy articles Outline of human anatomy Cell types by origin
v t e

The human body is the entire structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organs and then organ systems.

The external human body consists of a head, hair, neck, torso (which includes the thorax and abdomen), genitals, arms, hands, legs, and feet. The internal human body includes organs, teeth, bones, muscle, tendons, ligaments, blood vessels and blood, lymphatic vessels and lymph.

The study of the human body includes anatomy, physiology, histology and embryology. The body varies anatomically in known ways. Physiology focuses on the systems and organs of the human body and their functions. Many systems and mechanisms interact in order to maintain homeostasis, with safe levels of substances such as sugar, iron, and oxygen in the blood.

The body is studied by health professionals, physiologists, anatomists, and artists to assist them in their work.