VAN 211: Veterinary Histology and Embryology (2+2)

PERIPHERAL NERVOUS SYSTEM

• The neural crest cells form the ganglionic elements and supporting structures of the peripheral nervous system.
• The neural crest cells migrate from the dorsal midline. Some of the crest cells aggregate dorsolateral to the aorta forming sympathetic trunk ganglia. Other crest cells continue to migrate ventrally to form abdominal sympathetic ganglia.
• The crest cells also form the spinal ganglia and parasympathetic ganglia.
• The afferent and efferent fibres of the cerebro spinal and autonomic series are formed from neuroblasts located in the neural crest.