Which term means 'pertaining to the mouth'?

• A. Oral
• B. Otic
• C. Parameter
• D. Patent

Answer: (A)

In anatomy, words that describe a relation to a body part often end with -al, forming an adjective that tells you what it concerns. The term for anything related to the mouth is oral, so it describes the mouth or its activities, as in oral cavity or oral hygiene. The other options don’t fit because otic means related to the ear, parameter is a mathematical or statistical measure, and patent doesn’t denote anything about the mouth.