Skip to main content
. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: J Neurochem. 2021 Aug 6;158(6):1394–1411. doi: 10.1111/jnc.15471

Figure 2. Anatomical delineation of the nucleus basalis of Meynert (Ch4-nbM) in the human brain.

Figure 2.

(Top) Myelin stained whole-brain section, showing the substantia innominata below the crossing anterior commissure within which the anterior aspects of Ch4-nbM neurons are located. (A-D) Acetylcholinesterase stained sections delineating the anterior (A), anterointermediate (B), intermediate (C) and posterior (D) sectors of Ch4-nbM. Ac – anterior commissure; ai – anterointermediate sector of Ch4-nbM; al – anterolateral subsector of Ch4-nbM; am – anteromedial subsector of Ch4-nbM; Am – amygdala; an – ansa lenticularis; ap – ansa peduncularis; bl – basolateral nucleus of amygdala; GP – globus pallidus; GPe – globus pallidus externa; GPi – globus pallidus interna; GPv – ventral globus pallidus; hc – head of caudate; Hp – hippocampus; ic – internal capsule; id – intermediodorsal subsector of Ch4-nbM; iml – internal medullary lamina or globus pallidus; iv – intermedioventral subsector of Ch4-nbM; Nhl – nucleus of the horizontal limb of the diagonal band of Broca; nst – nucleus of stria terminalis; oc – optic chiasm; ot – optic tract; p – posterior sector of Ch4-nbM; Pt – putamen; si – substantia innominata; son – supraoptic nucleus of hypothalamus; v – blood vessel; vt – temporal horn of lateral ventricle; tc – tail of caudate. A-D are reproduced with permission from Wiley and Sons: Mesulam, M. M. and Geula, C. (1988) Nucleus basalis (Ch4) and cortical cholinergic innervation in the human brain: observations based on the distribution of acetylcholinesterase and choline acetyltransferase. J.Comp.Neurol. 275, 216–240.