"The substantia innominata (plural: substantiae innominatae), or substantia innominata of Meynert, is an area of mixed grey and white matter located within the anterior perforated substance in the basal forebrain. It contains the acetylcholine-rich basal nucleus of Meynert."
"The substantia innominata (plural: substantiae innominatae), or substantia innominata of Meynert, is an area of mixed grey and white matter located within the anterior perforated substance in the basal forebrain. It contains the acetylcholine-rich basal nucleus of Meynert."