MacDonnell M F
Brain Behav Evol. 1980;17(2):164-77. doi: 10.1159/000121796.
Scanning electron microscopic observations reveal cerebrospinal fluid contacting and supraependymal cell bodies of the mesencephalic trigeminal (Mes V) nucleus in adult specimens of mako and blue sharks, but not in very young specimens of the smooth dogfish shark. Possible functional roles are discussed in terms of participation of cerebrospinal fluid contacting Mes V cells in a neuroendocrine regulatory system. Comparisons are made with light microscopic observations of the relationship of Mes V cells with the ventricular wall. General features of the scanning electron microscopic appearance of the roof of the ventricle of the optic tectum in sharks are described and compared to similar general features found in the third ventricle of a variety of vertebrates.
扫描电子显微镜观察显示，在成年灰鲭鲨和蓝鲨的标本中，脑脊液接触中脑三叉神经（Mes V）核的室管膜上细胞体，但在幼年平滑狗鲨标本中未发现这种情况。根据脑脊液接触Mes V细胞参与神经内分泌调节系统的情况，讨论了其可能的功能作用。将Mes V细胞与室壁关系的光学显微镜观察结果进行了比较。描述了鲨鱼视顶盖脑室顶部的扫描电子显微镜外观的一般特征，并与各种脊椎动物第三脑室中发现的类似一般特征进行了比较。
