What does the prefix "Ab-" indicate in relation to position?

The prefix "Ab-" indicates a position that is away from a point of reference. It is derived from Latin, where it means "from" or "away." In medical terminology and anatomical descriptions, this prefix is often used to specify movement or positioning that moves away from a structure or the midline of the body.

For instance, in terms like "abduction," it describes the movement of a limb away from the body’s midline. Understanding prefixes like "Ab-" is essential for accurately interpreting medical terms, as they provide critical context about location and movement within the body. This helps in both clinical settings and in understanding anatomical relationships.