=====Inferior thalamic peduncle===== A large fiber bundle emerging from the anterior part of the [[thalamus]] in the anterior and rostal direction, in part joining the medial fibers of the [[internal capsule]], and in part curving laterally around the medial margin of the capsule into the [[innominate substance]]. Many of its fibers establish a reciprocal connection of the mediodorsal nucleus of the thalamus with the orbital gyri of the frontal lobe, but numerous other fibers constitute a conduction system from the amygdala and olfactory cortex to the mediodorsal nucleus.