Which term indicates a position toward the back of the body?

The term that indicates a position toward the back of the body is "posterior." In anatomical terminology, "posterior" specifically refers to structures that are located towards the back side of the body. For instance, in human anatomy, the spine is posterior to the stomach, meaning it is positioned further back. This term is used in conjunction with "anterior," which denotes a position toward the front.

The other options refer to different positional terms in anatomy. "Medial" describes a position that is closer to the midline of the body, "superficial" refers to a position that is closer to the surface of the body, and "superior" indicates a position that is higher or above another structure. Each of these terms has a specific meaning that helps provide clarity in describing the locations and relationships of various body parts.