This illustration is a detailed cross-sectional view of the human brain, highlighting various parts in different colors for better distinction. The cerebrum, in pink, is shown along with the cerebral cortex's folds and grooves. The blue region represents the thalamus and hypothalamus, part of the brain's diencephalon. The brown area indicates the midbrain. The pons and medulla oblongata in yellow are part of the brainstem. The cerebellum in the lower right is shown in a mixture of beige and purple, demonstrating its distinct structure.