ANATOMY OF THE BRAIN. Anatomy of the brain. The caudate nucleus, the putamen, the globus pallidus yellow, the fornix green, the indusium griseum dark green, the thalamus light blue, the hypothalamus dark blue, the hippocampus purple, the amygdala pink, the mammillary body dark yellow, the olfactory bulbs light green, the cingulate cortex blue, the lateral ventricles grey blue, the corpus callosum light yellow.