The science of the structure of the body is called anatomy.

Here's a breakdown:

* Anatomy: The study of the structure of living organisms. This includes the shapes, sizes, and organization of different body parts.

* Gross anatomy: Deals with structures visible to the naked eye.

* Microscopic anatomy (histology): Studies tissues and cells under a microscope.

While anatomy focuses on the "what" of the body's structure, physiology focuses on the "how" - how the body's systems function and work together.