Pert. to the brain?

• A. Mast/o
• B. Encephal/o
• C. Somat/o
• D. Bronch/o

Answer: (B)

The key idea is that medical terms use combining forms to indicate meaning. For brain, the combining form is encephal/o. It comes from a Greek root meaning “in the head” and appears in words like encephalitis or encephalopathy, which relate specifically to the brain. The other options point to different body parts: mast/o means breast, somat/o means body, and bronch/o means bronchus in the lungs. So encephal/o is the correct form for “pertaining to the brain.”