Which term describes the back side of the body, also known as dorsal?

The term that accurately describes the back side of the body is "posterior," which is synonymous with "dorsal." In anatomical terminology, "posterior" refers to the position towards the backside of the body, while "dorsal" specifically relates to the back in a biophysical context, particularly in animals.

Understanding these terms is crucial in medical law and ethics, as precise language is essential in clear communication regarding patient care, documentation, and legal matters. The anterior refers to the front side of the body, while proximal describes a position closer to the point of attachment or origin, typically used in reference to limbs. Medial indicates a position closer to the midline of the body. Therefore, among the options given, "posterior (dorsal)" is the appropriate term to describe the backside of the body.