The major parts and functions of the brain would be the cerebrum, cerebellum, and brainstem. The cerebrum is the largest part of the brain, its job is interpreting touch, vision, and hearing. The cerebellum is under the cerebrum and coordinates muscle movement. The brainstem connects the cerebrum and cerebellum to the spinal cord. It's job is functions of breathing, heart rate, bod temperature, sneezing, coughing, and vomiting.