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Magnocellular neurosecretory centers in the rat hypothalamus
Author(s) -
Price Peterson R.
Publication year - 1966
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901280205
Subject(s) - anterior commissure , fornix , medial forebrain bundle , biology , nucleus , forebrain , anatomy , optic tract , hypothalamus , supraoptic nucleus , commissure , suprachiasmatic nucleus , corpus callosum , dorsum , parvocellular cell , posterior commissure , neuroscience , central nervous system , hippocampus , optic nerve , striatum , dopamine
Hypothalami from normal rats were examined after preparation with Gomori's chromalum‐hematoxylin stain for neurosecretory material. In addition to the supraoptic and paraventricular nucleii, five additional nuclear masses of neurosecretory cells were found. These all formed more or less compact cellular groups, clearly demarcated from surrounding neural tissue and with constant location from animal to animal. One nucleus, immediately posterior to the anterior commissure, along the ventricular wall, is termed anterior commissural. Two others, being dorso‐lateral to the columns of the fornix, are termed anterior and posterior fornical. Midway between the paraventricular nucleus and the optic tract, a characteristically shaped nucleus of very compact cells, the nucleus circularis, is encountered. Finally, another group of cells is seen dorsal to the optic tract in the middle of the medial forebrain bundle, the nucleus of the medial forebrain bundle.