Masseter muscle is partly concealed, anteriorly, by the superficial portion. Posteriorly, it is covered by the parotid gland. Along with the other three muscles of mastication (temporalis, medial pterygoid, and lateral pterygoid), the masseter is innervated by the anterior division of the mandibular division (V3) of the trigeminal nerve. The innervation pathway is: gyrus precentralis > genu capsula interna > nucleus motorius nervi trigemini > nervus trigeminus > nervus mandibularis > musculus masseter. The action of the muscle during bilateral contraction of the entire muscle is to elevate the mandible, raising the lower jaw. Elevation of the mandible occurs during the closing
Finn the Human common theory explaining the etymology of his name includes the French word "fin", meaning "end". Another possibility is that his name is Irish, Finn being a name of a mythological Irish hero, whose name is derived from "fionn", the Irish language word for blond; Finn the Human is blond as well. The cause for him being the last human is alluded to by Finn and many other characters as "The Great Mushroom War", which was a nuclear war that wiped out the majority of humanity. Up until the character "Susan Strong" is introduced, Finn believes that he has never met