The document discusses the structure and function of the human brain. It identifies the major parts of the brain including the cerebrum, cerebellum, medulla, spinal cord, and neurons. The cerebrum controls voluntary movement and the senses. The cerebellum controls balance, posture, and coordination. The medulla connects the brain to the spinal cord. The document also briefly discusses brain disorders like hydrocephalus and how the left and right hemispheres process different types of information.