**3.4 Distribution in the territory of the hypoglossal nerve**

As far as we know no muscles spindles have been reported in togue muscles. Junquera [45] observed one muscle spindle in the genioglossus muscle as well as numerous putative proprioceptors (**Table 1**).

#### *Proprioception*

Therefore, as a whole, the cephalic muscles have proprioceptive inervation, although only the muscles innervated by the trigeminal nerve and the *platysma colli* muscle innervated by the facial nerve contain neuromuscular spindles. The cephalic proprioceptors may be is involved in the coordination of facial movements and nonverbal communication, in language, swallowing and some other reflexes [64–66].
