05/12/2026
The month of May is Brain Cancer Awareness Month. According to the National Cancer Institute, doctors are expected to diagnose about 24,740 people in the United States with cancers of the brain or central nervous system in 2026.
Here are the main parts of the brain:
Cerebrum - The cerebrum is the large, superior part of the brain. It has two halves called hemispheres. The left hemisphere controls the right side of the body and the right hemisphere controls the left side. The cerebrum controls emotions, thoughts, speech learning, senses (seeing, hearing, smelling, touching), and voluntary muscle movement.
Cerebellum - The cerebellum is located underneath the cerebrum at the back of the brain. The cerebellum controls balance and coordination.
Brain Stem - The brain stem is located at the base of the brain, and connects the brain and spinal cord. It contains nerve fibers that transmit signals between the cerebrum, cerebellum, and the rest of the body. It controls basic body functions such as breathing, heartbeat, and blood pressure.
Basal Ganglia - The basal ganglia are located deep within the brain and also help control muscle movement.
Spinal Cord - The spinal cord also has nerve fibers that carry signals coordinating muscle movement, feeling, sensation, bladder function, and bowel function.
Cranial Nerves - The cranial nerves come out of the brain stem rather than the spinal cord.