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Cell Types in the Mesencephalic Trigeminal Nucleus of Mauremys caspica
Author(s) -
Fernández Elvira Fernández,
Doel Rosa María Paz
Publication year - 1983
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.1463-6395.1983.tb00794.x
Subject(s) - nissl body , biology , nucleus , midbrain , turtle (robot) , anatomy , cell , trigeminal ganglion , trigeminal nerve , neuroscience , central nervous system , microbiology and biotechnology , ecology , staining , biochemistry , genetics , sensory system
A classification of the neurons of the mesencephalic trigeminal nucleus (MTN) has been carried out in the adult turtle Mauremys caspica on the basis of cell size and the shape and arrangement of the Nissl granules, following Sheinin's (1930) criteria for the dog MTN. The authors describe the nucleus as being divided in two cell populations with different neuronal composition and tectal location and probably distinct embryonic sites of origin. The morphological variation observed in the trigeminal neurons might be an expression of functional specialization.