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.

human body, the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues, organs, and systems.

The human body is a complex network of systems that work together to keep life-sustaining processes running smoothly. These systems break down food for fuel, clear away waste, repair damaged tissues and DNA, fight infectious germs and monitor the outside world so we can move through it safely.

Human body parts comprise a head, neck and four limbs that are connected to a torso. Giving the body its shape is the skeleton, which is composed of cartilage and bone. Human body internal parts such as the lungs, heart, and brain, are enclosed within the skeletal system and are housed within the different internal body cavities.