Leonardo's Contribution to Neuroscience
http://pevsnerlab.kennedy...N_2002_sans.pdf
Leonardo da Vinci's contributions to neuroscience.Pevsner, J. (2002) Trends Neurosci. 2002 Apr;25(4):217-20.
pith v.tr - To sever or destroy the spinal cord of, usually by inserting a needle into the vertebral canal.