The third Chapter, of Dislocations.
Like as wee haue done in Fractures, so we will followe out in dislocations but for the better vnderstanding thereof, I woulde knowe of you, after how many fashions the boanes are ioyned together, before we come to the definition of the dis∣ease.
All boanes are ioyned generally two wayes, to witte, by Ar••thro••, that is, by articulation, and by Sym∣phis••, that is, by naturall vnion.
Howe many sortes are there of articulation?
There are two, to witte, Diarthrosis, that is, coniunction with mouement manifest to the sight, as legges, armes, feete and handes: Synarthrosis, is mouing more obscure to bee perceiued, as the teeth, the sutors of the head.
Howe many sorts are there of ma∣nifest mouinges?
Three, to witte, Enarthrosin, that is, when there is a great cauitie, that receiueth a long round∣nesse, as the thigh with the haunch: the second is Arthro∣dia, that is, when a superficiall cauitie receiueth a little su∣perficiall head of a boane, as the arme and shoulder with