Which root means 'wall'?

• A. Pareunia
• B. Pari
• C. Parie
• D. Path(o)

Answer: (C)

The concept being tested is identifying the root that means wall. The root parie- comes from Latin paries, meaning a wall, and appears in anatomical terms such as the parietal bones and the word parietal relating to the wall of a body cavity. This is the clear indicator of wall among the options. The other terms point to different ideas: pareunia relates to sexual intercourse, path(o) to disease, and pari is not the standard wall-root used in medical terminology. So the root meaning wall is parie-.