Coronal section through the temporal horn. Landmarks demonstrated here include the insular cortex deep to the frontal and temporal operculum within the Sylvian fissure. Deep to the insula are, from lateral to medial, the extreme capsule, the claustrum and the external capsule; the extreme and external capsules are white matter tracts carrying corticocortical association fibers. Medial to the external capsule are the putamen and globus pallidus, which are separated from the caudate nucleus by the anterior limb of the internal capsule. The optic tracts are visible here (in close proximity to the amygdala) wrapping around the crus cerebri and coursing posteriorly toward the lateral geniculate nucleus (LGN) of the thalamus.  The LGN gives rise to the optic radiation, which enters the wall of the lateral ventricle.  Image courtesy of AL Rhoton, Jr.)