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
The Force to the sorcery of fairy tales and medieval romance than it’s ever been". Astrophysicist Jeanne Cavelos says in "The Science of Star Wars" that the Force raises questions that scientists have long asked. She points out that the ancient Greeks explored the idea of a "fifth element" that permeated and connected everything in the universe, and that Isaac Newton proposed that the human brain might be able to trigger waves in the ether, giving humans psychic powers. Cavelos's sources are mostly skeptical about a "real world" explanation for the Force, but they explore ideas in areas such as quantum physics,