The fore-brain or the cerebrum is the largest part of the brain and it makes about 85% of the brain. The folds in the fore-brain help it to fit into the skull. The main parts of the fore-brain are: cerebral hemispheres and basal ganglia. Cerebrum is the base of memory, intelligence and mind. It is the part which helps us to think, learn, remember, speak and feel. The cerebrum also controls body-part movements and sensory stimuli.