evolution of the human brain. from reptilian brain to limbic system and neocortex

amygdala amygdalae anatomical anatomy basal behaviours biology body brain callosum central cerebellum cerebrum cingulate cognition complex corpus cortex cross diagram education evolution feeling fornix ganglia gland head health hippocampus human humans hypothalamus illustration limbic lobe mammalian medical medicine memories neocortex nervous part pituitary reptilian science section system vector