American Academy of Professional Coders (AAPC) Practice Exam

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What is the meaning of the prefix "mes/o"?

Left
Middle
Outside
Right

The correct answer is: Middle

The prefix "mes/o" is derived from Greek, meaning "middle." It is commonly used in various medical and anatomical terms to denote something that is situated in the middle or intermediary between two other structures. For example, in the term "mesenteric," it refers to the middle part of the peritoneum that attaches the intestine to the abdominal wall. Understanding this prefix is crucial in medical coding and terminology because it provides insight into the location of various anatomical structures or conditions. Knowing that "mes/o" indicates a central position helps in accurately interpreting terms and their implications in clinical settings. Thus, identifying the middle aspect is key when dealing with anatomical references.