What does the prefix 'ep-' indicate in medical terms?

The prefix 'ep-' in medical terminology signifies "above," "upon," or "over." This prefix is derived from the Greek language, where it conveys the idea of being on top of or in addition to something. In a medical context, 'ep-' is commonly used in terms such as 'epidermis,' which refers to the outermost layer of skin, lying above other layers.

Understanding this prefix is important for interpreting various medical terms that describe anatomical locations or relationships within the body. The association of 'ep-' with being on or over something enhances the comprehension of the term's meaning and its implications in a clinical setting.