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Regional patterning of reticulospinal and vestibulospinal neurons in the hindbrain of mouse and rat embryos

✍ Scribed by François Auclair; Raymond Marchand; Joel C. Glover

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
506 KB
Volume
411
Category
Article
ISSN
0021-9967

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✦ Synopsis

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.

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