Anatomy
internal capsule
in·ter·nal cap·sule [ in-tur-nl kap-suhl, -sool, -syool ]
Subclass of:
Neural Pathways; Telencephalon
Definitions related to internal capsule of brain:
  • (internal capsule) A white matter structure in the subcortical region of the brain that contains a high concentration of motor and sensory projection nerve fibers. It consists of the anterior limb, genu, posterior limb, and the retrolentiform and sublentiform parts.
    NCI
    U.S. National Cancer Institute, 2021
  • (internal capsule) Internal capsule is an organ subdivision of the telencephalon which is made up primarily of myelinated axonal neural tissue (white matter). The internal capsule is a major set of fiber bundles lateral to the thalamus and caudate nucleus and medial to the putamen and globus pallidus. It projects dorsally to the white matter underlying the cerebral cortex.
    Foundational Model of Anatomy
    University of Washington, 2017
  • (internal capsule) WHITE MATTER pathway, flanked by nuclear masses, consisting of both afferent and efferent fibers projecting between the WHITE MATTER and the BRAINSTEM. It consists of three distinct parts: an anterior limb, posterior limb, and genu.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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