a structure considered by some anatomists to be a part of the basal ganglia
(L. fence or barrier): A thin vertical sheet of gray matter that underlies the cortex of the insula. It is located between the extreme capsule laterally and the external capsule medially. Considered a component of the basal ganglia bu t with no functional relationship. See tutorial on basal ganglia
a layer of gray matter in the brain adjacent to the lenticular nucleus
L. a barrier or fence, from claudere, to shut or close. A thin layer of gray matter between the cortex of the insula (island of Reil) and the putamen. The claustrum was described by Meynert (1833 -1892).
A layer of gray matter lying beneath the insula and lateral to the external capsule. It resembles the deeper layers of the cortex in structure. Its specific function is not known.
The claustrum is a thin layer of grey matter lying between the extreme capsule and external capsule in the brain. Its function is not completely known, although it has reciprocal connections with the cerebral cortex.