Plate 17.352 Basal Ganglia
Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Human, 10% formalin, Weigert's hematoxylin (Loyez), 1 x.
Cingulate gyrus: Located dorsal to the corpus callosum. A component of the limbic lobe, which also includes the subcallosal gyrus, isthmus, parahippocampal gyrus and uncus.
Caudate nucleus: C-shaped mass of gray matter closely related to the lateral ventricle. A component of the basal ganglia and thus plays a role in motor control.
Internal capsule (anterior limb): Separates the caudate nucleus and cerebral cortex.
Putamen: One of the basal ganglia nuclei. Located lateral to the anterior limb of the internal capsule. Concerned with motor control.
Insula: Also referred to as the island of Reil, lies deep in the sylvian fissure. Concerned with autonomic function.
Choroid plexus: Vascular pial fold in the body of the lateral ventricle. One of the sites of formation of cerebrospinal fluid.
Corpus callosum: C-shaped bundle of heavily myelinated fibers connecting the two cerebral hemispheres. Important in interhemispheric transfer of information. Section is through the genu (anterior) and splenium (posterior) parts of the corpus callosum.
Lateral ventricle: Note the characteristic bulge of the caudate into the cavity of the lateral ventricle.
Septum pellucidum: Separates the two lateral ventricles. May contain a cavity, cavurn septi pellucidi.
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