What does the mylohyoid muscle do?
The mylohyoid mainly functions to elevate the hyoid bone, elevate the oral cavity, and depress the mandible. The source of motor innervation is via the mylohyoid nerve, which is a division of the inferior alveolar nerve, a branch of the mandibular division of the trigeminal nerve.
What kind of muscle is the mylohyoid?
suprahyoid muscles
It is a pharyngeal muscle (derived from the first pharyngeal arch) and classified as one of the suprahyoid muscles. Together, the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth.
What is under the mylohyoid muscle?
Forming the floor of the mouth, the superior surface of mylohyoid muscle is related to the structures of the oral cavity; it lies directly beneath the geniohyoid, hyoglossus and styloglossus muscles, hypoglossal (CN XII) and lingual nerves, submandibular ganglion, sublingual and submandibular glands, and the lingual …
What is the difference between genioglossus and geniohyoid?
The paired geniohyoid muscles lie adjacent to one another and are immediately superior to the mylohyoid muscles on the floor of the mouth and inferior to the genioglossus muscles that form the roof of the mouth.
What is the mylohyoid line?
Medical Definition of mylohyoid line : a ridge on the inner side of the bone of the lower jaw extending from the junction of the two halves of the bone in front to the last molar on each side and giving attachment to the mylohyoid muscle and to the superior constrictor of the pharynx. — called also mylohyoid ridge.
What does the mylohyoid nerve supply?
The mylohyoid nerve’s function is to provide motor innervation to the mylohyoid muscle and the anterior muscle belly of the digastric muscle. [1] It also gives off a cutaneous nerve. This cutaneous nerve branch will provide sensory innervation to the inferior aspect of the chin.
What does the mylohyoid nerve innervate?
What causes mylohyoid pain?
Temporomandibular joint syndrome, more commonly known as TMJ, is a condition often affecting the mylohyoid. This condition is known for causing moderate to severe pain, particularly in the head, face, and neck. TMJ can be caused by trauma to the area as well as by natural causes, such as arthritis or teeth grinding.
Is geniohyoid and mylohyoid?
Geniohyoid muscle is a short, paired muscle that belongs to the suprahyoid muscle group of the neck. Together with the digastric, stylohyoid and mylohyoid muscles, it constitutes the floor of the oral cavity.
Is the geniohyoid smaller than the mylohyoid?
Geniohyoid muscles They are immediately superior to the mylohyoid muscles in the floor of the mouth and inferior to the genioglossus muscles that form part of the root of the tongue.
Where is the Mylohyoid groove?
Mylohyoid groove – Sulcus mylohyoideus The mylohyoid groove (Sulcus mylohyoideus) is a vasculonervous impression that runs under the mylohydoid line, the muscular insertion of the mylohyoid muscle. It runs rostrally from the mandibular foramen.
What is another name for the Mylohyoid groove?
sulcus mylohyoideus
A groove on the medial surface of the ramus of the mandible beginning at the lingula; it lodges the mylohyoid artery and nerve. Synonym: sulcus mylohyoideus, mylohyoid fossa.