| A | B |
|---|
| Brain stem | portion of the brain made up of the midbrain, pons, and medulla oblongata |
| Cerebellum | portion of the brain, attatched to the brain stem, that has an essential role in maintaining muscle tone and coordinating normal movements |
| Cerebrospinal fluid | fluid found in the cavities and canals of the brain and spinal cord |
| Cerebrum | portion of the brain that controls consciousness, memory, sensations, emotions, and voluntary movements |
| Diencephalon | "Between" brain |
| Electroencephalogram | Graphic record of brain's action potentials |
| Hypothalamus | portion of diencephalon |
| Limbic system | a group of structures surrounding the corpus callosum that produces various emotional feelings |
| Meninges | membranes surrounding the brain and spinal cord |
| Reticular formation | fibers within the brain stem that arouse the cerebrum |
| Thalamus | portion of diencephalon; mass of gray matter involved in relay of sensory information, emotion, arousal, and complex reflexes |
| Ventricles | fluid-filled spaces within the brain |
