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inferior thalamic peduncle


Definition: 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.

Synonym(s): inferior thalamic radiationTA, radiatio inferior thalamiTA, pedunculus thalami inferior

See Also: ansa peduncularis

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.