The
human body is the entire physical structure of a
human organism. The human body consists of a
head,
neck,
torso, two
arms and two
legs. The average height of an adult human is about 1.6 m (5 to 6 feet) tall. This size is largely determined by
genes.
Body type and
body composition are influenced by postnatal factors such as
diet and
exercise.
The human body is often called a "body". The body of a dead person is called a "corpse" or "cadaver".
The human body consists of
biological systems of
organs,
tissues and
cells.
Human anatomy studies structures and systems of the human body. The study of the workings of the human body is called
physiology.
Ecology focuses on the distribution and abundance of the bodies and how the distribution and abundance are affected by interactions between bodies and its environment.
Combination of individual
atoms,
molecules,
polypeptides, cells in human body, is a source of
emergence.