Certified Paraoptometric (CPO) Practice Exam 2025

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What is the meaning of the prefix "Peri-" in medical terminology?

  1. Within

  2. Away from, out of

  3. Surrounding

  4. Backward

The correct answer is: Surrounding

The prefix "Peri-" in medical terminology denotes the concept of "surrounding" or "around." It is commonly used to describe structures or tissues that are located around other structures. For instance, when referring to the "pericardium," it describes the membrane surrounding the heart. This prefix helps convey important information about the spatial relationships between different anatomical features in the body. Understanding this prefix is crucial for interpreting various medical terms accurately, especially those that involve anatomical relationships.

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