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Fine Structure of the Optic Tract in the Atlantic Hagfish, Myxine glutinosa
Author(s) -
Holmberg Kaj
Publication year - 1972
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1972.tb00584.x
Subject(s) - hagfish , biology , anatomy , optic tract , optic nerve , ganglion , cytoplasm , vertebrate , microbiology and biotechnology , genetics , gene
The fine structure of the the optic tract in Myxine glutinosa was studied in three animals. The nerve fibers are unmyelinated and occur either singly or in groups surrounded by glial cytoplasm. 810 and 1467 nerve fibers were counted in two tracts. In the zone where the optic tract leaves the eye cup, a cell type is described and suggested to correspond to ganglion cells. Presynaptic terminals containing agranular vesicles were seen adjacent to this cell type and to other processes in the area. The results are discussed in view of previous reports.