Anatomy & Physiology

The Encyclopedia Britannica defines anatomy as, "a field in the biological sciences concerned with the identification and description of the body structures of living things. Gross anatomy involves the study of major body structures by dissection and observation and in its narrowest sense is concerned only with the human body." 

The Encyclopedia Britannica defines physiology as, "Physiology, study of the functioning of living organisms, animal or plant, and of the functioning of their constituent tissues or cells. The word physiology was first used by the Greeks around 600 bce to describe a philosophical inquiry into the nature of things." 

Both are a part of the study of biology, focusing on what the body is made of and how it works. 

See more diagrams on the human body here.