Child's limbic system. Illustration of a child's brain seen from the side, dissected to show the structures of the right hemisphere in mid-sagittal section. Parts of the limbic system, the hippocampus (blue), the amygdala (blue), the thalamus (pink), the hypothalamus (orange), and other brain structures (coloured), are shown located deep within the brain. The outer part of the brain is the cerebrum, with the cerebellum at the rear base of the brain (seen above the ear). The limbic system is responsible for brain functions such as emotion, behaviour and long-term memory.