The brain is a complex organ composed of many parts. The CORTEX, cerebrum, LOBE, and thalamus are all part of the brain. The CORTEX is a six-letter term that refers to the outer layer of the brain, which is responsible for higher functions such as language, memory, and decision-making. The cerebrum is an eight-letter term that refers to the largest part of the brain, which is responsible for conscious thought and voluntary movement. The LOBE is a four-letter term that refers to the sections of the brain, which are responsible for different functions such as vision, hearing, and smell. Lastly, the thalamus is an eight-letter term that refers to the part of the brain that acts as a relay station for sensory information.