What does the prefix "peri-" denote in medical terminology?

The prefix "peri-" in medical terminology signifies "surrounding" or "around." This prefix is derived from Greek and is commonly used to describe structures, conditions, or processes that are located surrounding or encompassing something. For example, in the term "pericardium," which refers to the fibrous sac surrounding the heart, the prefix "peri-" indicates that it encloses the heart area. Understanding this prefix aids in comprehending various medical terms and their meanings, especially those related to anatomical locations and physiological conditions.

The other options have different meanings in medical terminology: "under" or "below" refers to the prefix "sub-"; "through" relates to the prefix "trans-"; and "above" or "upon" connects to the prefix "epi-." Recognizing these prefixes helps in accurately interpreting medical language and enhances effective communication in the healthcare setting.