Deshmukh Prajakta R, Bul Shubhangi V, Gadhikar Yashashree A
Government Vidarbha Institute of Science and Humanities, Amravati, Maharashtra, INDIA - 444604.
Ann Neurosci. 2011 Jul;18(3):92-9. doi: 10.5214/ans.0972.7531.1118303.
Morphological variations have arisen due to diverse environmental conditions. Application of cytoarchitectonic criteria permits the delineation of distinct nuclear complexes from the brain region.
Very less information is available on the cytoarchitectonic pattern of the brain, of the giant snake headed murrel, Channa marulius. The murrel is much neglected in neuroanatomical terms and their study is a necessary step in tracing the evolutionary trends. Hence, in the present investigation, the brain of the snake headed fish, Channa marulius has been investigated to reveal the organization of different nuclear complexes.
Different nuclear complexes were identified and studied using Cresyl violet and Haematoxyline-Eosin staining techniques from the brain region of Channa marulius.
Five distinct nuclear complexes namely pars medialis, pars centralis, pars lateralis dorsalis and pars lateralis ventralis respectively were observed in the area dorsalis telencephali and five nuclear groups pars ventralis, pars lateralis, pars dorsalis, pars supracommissuralis and nucleus entopeduncularis were identified in the area ventralis telencephali.
Three nuclear groups namely pars posterioris, pars dorsalis, pars ventralis were identified in preoptic area. The inferior lobes are massive and consist of five circumscrible nuclear complexes. Midbrain consists of optic tectum, torus longitudinalis and tegmentum where different nuclear groups were identified.
由于环境条件多样，出现了形态变异。应用细胞构筑标准可从脑区勾勒出不同的核复合体。
关于巨头鳢（Channa marulius）脑的细胞构筑模式的信息非常少。在神经解剖学方面，鳢类受到很大忽视，对它们的研究是追踪进化趋势的必要步骤。因此，在本研究中，对巨头鳢的脑进行了研究，以揭示不同核复合体的组织情况。
使用甲酚紫和苏木精 - 伊红染色技术，从巨头鳢的脑区识别并研究不同的核复合体。
在端脑背侧区域分别观察到五个不同的核复合体，即内侧部、中央部、背外侧部和腹外侧部；在端脑腹侧区域识别出五个核群，即腹侧部、外侧部、背侧部、连合上部和内缰核。
在视前区识别出三个核群，即后部、背侧部、腹侧部。下叶较大，由五个界限分明的核复合体组成。中脑由视顶盖、纵纹隆起和被盖组成，在其中识别出了不同的核群。
Zotero 插件