Tembhare D B
Z Mikrosk Anat Forsch. 1980;94(1):60-72.
The ultrastructural morphology of the medial neurosecretory cells of the pars intercerebralis region of the brain and that of the corpus cardiacum (C) has been described. The medial neurosecretory cells (MNC) are classified as four distinct cell-types--MNC1, MNC2, MNC3 and MNC4 containing the neurosecretory granules (NSG) about 1900 A, 2100 A, 1600 A and 1750 A in diameter, respectively. The varying amounts of NSG have been seen in the axonal tracts, nervi corporis cardiaci and axon terminals in the CC and aortic wall. Two types of intrinsic neurosecretory cells (INC) can be distinguished in the corpus cardiacum--INC1 and INC2 containing the electron dense granules of 3000 A and 2000 A in diameter, respectively. The subcellular mechanisms associated with synthesis and release of the neurosecretory material are discussed.
大脑脑间部区域的内侧神经分泌细胞以及心侧体(C)的超微结构形态已被描述。内侧神经分泌细胞(MNC)分为四种不同的细胞类型——MNC1、MNC2、MNC3和MNC4,其含有的神经分泌颗粒(NSG)直径分别约为1900埃、2100埃、1600埃和1750埃。在轴突束、心神经以及心侧体和主动脉壁的轴突终末中可见到数量各异的神经分泌颗粒。在心侧体中可区分出两种类型的固有神经分泌细胞(INC)——INC1和INC2,其含有的电子致密颗粒直径分别为3000埃和2000埃。文中还讨论了与神经分泌物质合成和释放相关的亚细胞机制。