Further observations on the innervation of the proximal sesamoidean ligament of the horse and ox.

Abstract

A vegetative innervation is described for the first time in this district. On the contrary, the finding of Pacini and pacini-like corpuscles, of Golgi Mazzoni's receptors, of muscle spindles and Golgi's tendon-organs testifies the existence of a sensitive innervation in this anatomical territory. According to Karamanlidis free nervous endings are not present. All the above recorded receptors show the typical structure and can be found isolated, grouped to constitute flower-sprays, organized to form opposito-polar corpuscles or associated to originate pecilomorphic fibers. These two last findings are new for this investigated anatomical territory. Moreover, the authors have described in the ox the so-called composed corpuscles previously observed by Ottolenghi (1931) and Karamanlidis in the horse. Finally, it has been demonstrated, contrary to the data reported by Karamanlidis, that the muscle spindles located in the ligament are always supplied with a nervous annulo-spiral termination which is centrally placed in the equatorial region.