**3.2 Distribution in the territory of the facial nerve**

No typical muscle spindles have been found in the human facial muscles [42, 57–61] with the exception of on the facial part of the muscle *platysma colli* [40, 45]*.* Conversely, they contain numerous atypical proprioceptors (**Table 1**) the type II of being the predominating and the greater density being observed in the *buccinator* and *orbicularis oris* muscles.
