Narkiewicz O, Mamos L
Department of Anatomy, Medical Academy, Gdańsk, Poland.
J Hirnforsch. 1990;31(5):623-33.
The claustra of 9 species of Insectivora (Sorex araneus, Sorex minutus, Tenrec ecaudatus, Solenodon paradoxus, Neomys fodiens, Erinaceus europaeus, Talpa europaea, Desmana moschata, Potamogale velox) were investigated. In all examined animals we found two parts of the insular claustrum: the main part called by us the pars principalis and more medially situated lamina profunda claustri. In the "basal" Insectivora the main part is in close contact with the layer VIa of the neocortex. In some more developed "basal" and in all "progressive" Insectivora the area capsularis appears. Dorsolaterally it separates the main part of the insular claustrum from the neocortex and possesses, besides neurons, also numerous fibers of the extreme capsule. The above data strongly suggest that in the phylogenesis the insular claustrum originates from the cortex from which it gets separated by the extreme capsule. Lamina profunda claustri is rather a narrow band of neurons situated on the medial side of the pars principalis and mostly separated from it by a thin lamina of white substance. Lamina profunda is continuous with the layer VIb of the neocortex.
对9种食虫目动物（欧洲刺猬、小林姬鼠、马岛猬、沟齿鼩、水鼩鼱、刺猬、欧洲鼹鼠、水獭鼹、刚果水鼩）的屏状核进行了研究。在所有检查的动物中，我们发现脑岛屏状核有两个部分：我们称之为主体部的主要部分和位于更内侧的屏状核深层板。在“基干”食虫目动物中，主要部分与新皮质的VIa层紧密接触。在一些更发达的“基干”食虫目动物和所有“进步”食虫目动物中，出现了被囊区。在背外侧，它将脑岛屏状核的主要部分与新皮质分开，除了神经元外，还拥有大量的外囊纤维。上述数据有力地表明，在系统发生过程中，脑岛屏状核起源于皮质，后来被外囊与皮质分开。屏状核深层板是位于主体部内侧的一条相当窄的神经元带，大多被一层薄薄的白质与主体部分开。深层板与新皮质的VIb层相连。
