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The accessory optic system of the ferret
Author(s) -
Thorpe Penelope A.,
Herbert J.
Publication year - 1976
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.901700303
Subject(s) - optic tract , biology , superior colliculus , anatomy , suprachiasmatic nucleus , retinal , diencephalon , hypothalamus , optic nerve , cerebral peduncle , nucleus , neuroscience , medicine , internal capsule , biochemistry , radiology , magnetic resonance imaging , white matter
The accessory optic system of the ferret has been studied both by silver degeneration staining and by autoradiography after intraocular 3 H leucine injections. There is no anterior accessory optic tract but a posterior tract containing only crossed fibres leaves the brachium of the superior colliculus and ends in the two nuclei, the medial and lateral terminal nuclei, lying either side of the cerebral peduncle. Both suprachiasmatic nuclei receive retinal fibres visible only on autoradiographs; most fibres end in the contralateral nucleus. No other area in the hypothalamus appears to receive retinal fibres demonstrated by these methods.