I am looking for an umbrella term for general "parts of the brain", esp. for (somehow arbitrary) "subsets of neurons".
Domains, kingdoms, phylums all down to families, genus, and species are taxa:
In brain sciences there seems to be no such umbrella term which is generally agreed upon.
Which term would best include all of the following?
coarse brain subdivisions (cerebellum, cerebrum, ...)
cerebral lobes (frontal, parietal, ...)
the thalamus („a large mass of gray matter“)
nuclei (thalamic, ...)
the limbic system
regions of interest (in fMRI)
All of these immediate suggestions don't fit perfectly: