Which are the three main areas of the brain?

• A. Cerebrum, Cerebellum, Brain Stem
• B. Cerebrum, Spinal Cord, Brain Stem
• C. Cerebellum, Hypothalamus, Medulla
• D. Cerebrum, Dura Mater, Pia Mater

Answer: (A)

The brain is commonly described as having three major divisions: the cerebrum, the cerebellum, and the brainstem. The cerebrum is the largest part and handles conscious thought, memory, sensory processing, and voluntary movement. The cerebellum sits under and at the back of the cerebrum and coordinates movement, balance, and motor learning. The brainstem connects the brain to the spinal cord and manages essential life-sustaining functions such as breathing, heart rate, and basic arousal.

Other options mix in structures that aren’t brain regions, like the spinal cord or the protective coverings around the brain (meninges), and even specific brain areas that aren’t considered the three primary divisions. So the three main areas are the cerebrum, cerebellum, and brainstem.