Dorsal spine of Orthacanthus adamas from the Upper Freeport Coal (Carboniferous) of Linton, Ohio. The spine is about 71 mm long. Disclaimer: AAAS and EurekAlert! are not responsible for the ...
These two sets of neurons take turns. The dorsal neurons help the spinal cord learn a new movement, while the ventral neurons help it remember and perform the movement later.” Simon Lavaud ...