Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Internal Capsule

  • Theslee Joy DePieroEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_461


The internal capsule is an anatomical structure in the brain, containing ascending and descending tracts.

Current Knowledge

Location: The internal capsule is best viewed in a horizontal section of the brain, through the basal ganglia. It is composed of three sections: the anterior limb, genu, and the posterior limb. The anterior limb is lateral to the head of the caudate nucleus and medial to the lenticular nucleus. The genu abuts the third ventricle medially, and the globus pallidus forms its lateral border. The posterior limb is lateral to the thalamus and medial to the lenticular nucleus.

Vascular supply: The anterior limb of the internal capsule is supplied by the recurrent artery of Heubner off of the anterior cerebral artery and lenticulostriate branches off of the middle cerebral artery. The posterior limb is supplied by lenticulostriate branches off of the middle cerebral artery and the anterior choroidal artery off of the internal carotid artery.


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References and Readings

  1. Fix, J. D. (2008). Neuroanatomy (3rd ed.). Baltimore: Lippincott, Williams & Wilkins.Google Scholar
  2. Martin, J. (2003). Neuroanatomy: Text and atlas (3rd ed.). New York: McGraw-Hill.Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Braintree Rehabilitation HospitalBoston University School of MedicineBostonUSA