The document summarizes the major cortical lobes of the brain - frontal, parietal, temporal, and occipital lobes. It describes the primary motor cortex in the frontal lobe and Broca's area for speech production. The primary somatosensory cortex in the parietal lobe registers senses of touch. The primary auditory cortex in the temporal lobe processes sound. The primary visual cortex in the occipital lobe processes visual information. Association areas in each lobe are involved in functions like reasoning, spatial awareness, memory, and visual processing.