The body is the physical structure of a living organism, composed of various systems that work together to maintain life. It includes organs, tissues, and cells, all of which perform specific functions. The human body, for example, consists of systems such as the circulatory system, nervous system, and musculoskeletal system, each playing a crucial role in overall health and functionality. In humans, the body is typically divided into several parts: the head, torso, arms, and legs. Each part contains essential components, such as the brain in the head, which controls bodily functions, and the heart in the torso, which pumps blood. Understanding the body’s structure and function is vital for fields like medicine and biology.