What does the prefix "retro-" suggest about the direction or movement in a medical context?

The prefix "retro-" is derived from Latin, meaning "back" or "backward." In a medical context, it is commonly used to describe conditions, movements, or processes that are directed towards the back or returning to a previous state. For example, in terms like "retroperitoneal," it refers to the anatomical area situated behind the peritoneum. Thus, when you encounter "retro-" in medical terminology, it signifies a backward movement or orientation, aligning perfectly with the correct answer.