Observations on the early development of ascending spinal pathways
| Autor: | James C. Hazlett, J. L. Culberson, George F. Martin |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Embryology
Cerebellum Time Factors Thalamus Reticular formation Lateral reticular nucleus Opossum medicine Animals Afferent Pathways biology Reticular Formation Opossums Cell Biology Anatomy biology.organism_classification Spinal cord Pons medicine.anatomical_structure Animals Newborn Chromogenic Compounds Spinal Cord nervous system Axoplasmic transport Brain Stem Developmental Biology |
| Zdroj: | Anatomy and Embryology. 166:191-207 |
| ISSN: | 1432-0568 0340-2061 |
| Popis: | The development of ascending spinal pathways has been studied in the North American opossum using degeneration methods and the retrograde transport of horseradish peroxidase. Axons from caudal thoracic and/or lumbosacral levels of the spinal cord reach the lateral reticular nucleus, the inferior olivary complex, the reticular formation of the medulla and pons as well as the cerebellum very early in development. Innervation of the nucleus gracilis occurs somewhat later. Spinal axons grow into most of the caudal brain stem areas they occupy in the adult animal, including the nucleus gracilis, before there is convincing evidence that they reach the thalamus. Although spinal axons enter the cerebellum early in development their adult distribution with its characteristic discontinuities appears relatively late. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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