
The presence of trunk sympathetic neurons in the sea lamprey, a jawless vertebrate, challenges the prevailing belief that sympathetic ganglia arose only in jawed vertebrates, suggesting that a rudimentary sympathetic nervous system may have been characteristic of the earliest vertebrates.


coremsg

Challenging the belief that sympathetic ganglia are an innovation of jawed vertebrates, a study reports the presence of sympathetic neurons in an extant jawless vertebrate, the sea lamprey Petromyzon marinus.

Neural crest origin of sympathetic neurons at the dawn of vertebrates - Nature

discovery-of-sympathetic-neurons-originating-from-the-neural-crest-in-a-jawless-vertebrate-challenging-the-prevailing-belief-about-the-evolution-of-the-sympathetic-nervous-system


Discovery of Sympathetic Neurons Originating from the Neural Crest in a Jawless Vertebrate, Challenging the Prevailing Belief about the Evolution of the Sympathetic Nervous System
