The prefix 'Ab-' indicates which direction?

The prefix 'Ab-' comes from Latin and signifies movement away from something. In medical terminology, it is commonly used to describe anatomical positions or relationships, indicating a direction that is distant from a specified reference point or structure. For instance, in the term "abduction," it refers to moving a limb away from the midline of the body. This understanding of 'Ab-' as indicating a separation or departure is essential in comprehending various medical terms and their applications, particularly in anatomy and physiology.