Corpus: Mylohyoid muscle: Unterschied zwischen den Versionen

The mylohyoid muscle is a skeletal muscle belonging to the suprahyoid musculature that forms the muscular basis of the floor of the mouth. It is a derivative of the 1st gill arch.

The origin of the mylohyoid muscle is the linea mylohyoidea, which is found on the inside of the lower jaw bone (mandible). From its origin, the muscle runs caudally to the hyoid bone (os hyoideum).

The posterior fibres of the mylohyoid muscle attach to the hyoid bone. The rostral fibres meet those of the opposite side in the connective tissue raphe mylohyoidea, which runs from the chin to the hyoid bone.

Innervation is provided by the mylohyoid nerve, a branch from the inferior alveolar nerve of the mandibular nerve.

The muscle is supplied with blood via the mylohyoid ramus of the inferior alveolar artery.

The mylohyoid muscle is involved in the swallowing process by pulling the hyoid bone forwards. It is also involved in opening the jaw and in the grinding movement. As a broad muscle, the mylohyoid muscle forms the floor of the mouth (diaphragm oris).

The term mylohyoid muscle describes the topographical course with origin and insertion: the muscle originates at the mandible in the area of the molars (ancient Greek: mylai) and runs to the os hyoideum.