What is indicated by the prefix "Ab-" in medical terms?

The prefix "Ab-" in medical terminology is used to indicate "away from." This prefix is derived from Latin, where "ab" means "away" or "from." In a medical context, this can refer to various conditions or movements within the body, such as the direction of blood flow, the position of organs, or the location of injuries.

For example, in the term "abduction," which refers to the movement of a limb away from the midline of the body, the prefix "ab-" clearly signifies the directional aspect of moving away. Understanding this prefix is crucial because it helps healthcare professionals accurately describe the position and relation of different anatomical structures or functions.