The human brain is divided into several key regions, each responsible for different functions. The cerebrum is the largest part, involved in thinking, memory, and voluntary movements. The cerebellum coordinates balance and fine motor skills, while the brainstem controls essential life functions like breathing and heart rate. Within the cerebrum, there are four main lobes: the frontal lobe for decision-making and problem-solving, the parietal lobe for sensory information, the temporal lobe for hearing and language, and the occipital lobe for vision. Each region works together to enable complex behaviors and processes.