Specialized terms are used in anatomy to increase precision and avoid confusion. This includes the bodies position, as well as the position of its structures.

Anatomy is the study of the structures of organisms. Human anatomy is the study of structures in the body.

The functions can be grouped into 6 categories: Organization, Metabolism, Responsiveness, Movement, Development, Reproduction.

Homeostasis is the steady internal state which the body maintains. To maintain a steady state, the body continuously monitors and adjusts itself.

At the simplest level, humans are made atoms. However this fails to capture its complexity. Instead, we recognize atoms as the first level of organization.

Nutrients are substances that are consumed by the body and are essential for life. Nutrients are divided into 3 types: Water, Macronutrients, Micronutrients.

Physiology is the complement to anatomy and is concerned with the function, rather than the form, of structures in the body.