claustrum vs basal ganglion

claustrum and basal ganglion both are nouns.

Word	Noun	Adjective	Verb	Adverb
claustrum	Yes	No	No	No
basal ganglion	Yes	No	No	No

As nouns, basal ganglion is a hypernym of claustrum; that is, basal ganglion is a word with a broader meaning than claustrum:

claustrum: a layer of grey matter in the brain adjacent to the lenticular nucleus
basal ganglion: any of several masses of subcortical grey matter at the base of each cerebral hemisphere that seem to be involved in the regulation of voluntary movement

claustrum (noun)	basal ganglion (noun)
a layer of grey matter in the brain adjacent to the lenticular nucleus	any of several masses of subcortical grey matter at the base of each cerebral hemisphere that seem to be involved in the regulation of voluntary movement