What field of anatomy studies structures that are visible with the unaided eye?

The field of anatomy that studies structures visible to the unaided eye is called Gross Anatomy. This branch of anatomy is also known as macroscopic anatomy. It involves the study of anatomical structures that can be seen without the use of microscopes or other magnifying devices. This can include organs, muscles, bones, and more. Gross Anatomy is often used in medical education and training, as it provides a tangible, visual understanding of the human body.