(Chapter 15) Footnote 69:

See note 29 above. Here too Vesalius appears to be working from a faulty memory: Pollux Onomasticon 2.131 correctly identifies the o)dou/j with the second vertebra or axis (not the first vertebra or atlas); it is Rufus Ephesius Onomasticon ( De corporis humani appellationibus) 155.1 who says “I think Hippocrates calls the first vertebra of the spine the tooth,” to\n de\ prw=ton tou= traxh/lou sfo/ndulon I(ppokra/thj o)do/nta dokei= moi kalei=n.