Which combining form means pertaining to the cerebrum?

• A. cerebr/o
• B. dist/o
• C. cry/o
• D. conjunctiv/o

Answer: (A)

Cerebr/o is the combining form for the cerebrum, the main part of the brain. When you add the suffix -al, you form cerebral, which means pertaining to the cerebrum. So the root that carries the cerebrum meaning is cerebr/o, and the idea of “pertaining to” comes from the suffix. The other roots—dist/o (distance), cry/o (cold), conjunctiv/o (conjunctiva of the eye)—refer to different structures or concepts, so they don’t fit the meaning here.