Which of the following statements are true of anatomy and physiology?

A. Anatomy is the study only of structures visible to the unaided eye

B. Physiology is usually not directly related to anatomy and must be studied separately

C. A structure that is thick and firm probably has a supportive function

D. The size of an organ is part of its physiology

E. An organ's location in the body is part of its anatomy

F. Physiology is the study of the function of all of the pattern of the body