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Regional patterning of reticulospinal and vestibulospinal neurons in the hindbrain of mouse and rat embryos
Author(s) -
Auclair François,
Marchand Raymond,
Glover Joel C.
Publication year - 1999
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/(sici)1096-9861(19990823)411:2<288::aid-cne9>3.0.co;2-u
Subject(s) - hindbrain , biology , spinal cord , neuroscience , axoplasmic transport , anatomy , axon , pons , medulla , mauthner cell , central nervous system , fishery , fish <actinopterygii>
The dispositions and axonal trajectories of bulbospinal neurons in the pons and medulla of mouse and rat embryos is described from the earliest times these projections can be labelled retrogradely from the cervical spinal cord. Reticulospinal and vestibulospinal neurons are clustered into identifiable groups, each with a characteristic combination of spatial domain and axon trajectory. The various groups can be labelled retrogradely in a specific developmental sequence. The position of some groups shifts from medial to lateral with development, apparently through cell migration. These observations show that the basic regional organization of the reticulospinal and vestibulospinal projections is similar in mouse and rat and is already established during early stages of axon outgrowth. J. Comp. Neurol. 411:288–300, 1999. © 1999 Wiley‐Liss, Inc.