Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 17 On the Lumbar Vertebrae

The extra process which Galen ascribes to the lumbar vertebrae

I should add nothing else, had Galen not assigned an extra process (H in fig. 4) [p. accessorius] 13 on each side to the lumbar vertebrae which, he writes, 14 runs downward and is located next to the foramen [f. intervertebrale] through which a nerve runs that begins from the dorsal medulla. I have never observed this process in human vertebrae; consequently, in investigating it I decided I should employ the same system and method by which I regularly investigate features described by Galen that I do not find in human anatomy, and which I perceive to be other than he stated. My practice is to examine all of these in dumb animals, especially dogs (of which there has never been a shortage); 15 these have quite often shown me what Galen described, or instructed me what he meant as if leading me by the hand. I was unable to find this lumbar process until I undertook the complete dissection of an ape at Bologna for Giovanni Andrea Bianchi, 16 and assembled its bones together with those of a human skeleton.



Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 17 On the Lumbar Vertebrae