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The geniohyoid is a paired short muscle that arises from the inferior mental spine, on the back of the mandibular symphysis, and runs backward and slightly downward, to be inserted into the anterior surface of the body of the hyoid bone. [2]: 346 It lies in contact with its fellow of the opposite side. It thus belongs to the suprahyoid muscles.
The four classical muscles of mastication elevate the mandible (closing the jaw) and move it forward/backward and laterally, facilitating biting and chewing. Other muscles are responsible for opening the jaw, namely the geniohyoid , mylohyoid , and digastric muscles (the lateral pterygoid may play a role).
The hyoglossus is a thin and quadrilateral extrinsic muscle of the tongue. It originates from the hyoid bone; it inserts onto the side of the tongue. It is innervated by the hypoglossal nerve (cranial nerve XII). It acts to depress and retract the tongue.
A mental spine is a small projection of bone on the posterior aspect of the mandible in the midline. There are usually four mental spines: two superior and two inferior. Collectively they are also known as the genial tubercle, [1] genial apophysis and the Latin name spinae ment
The anterior surface gives insertion to the geniohyoid muscle in the greater part of its extent both above and below the transverse ridge; a portion of the origin of the hyoglossus notches the lateral margin of the geniohyoid attachment. Below the transverse ridge the mylohyoid, sternohyoid, and omohyoid are inserted.
In adults, GH therapy has been FDA-approved to treat GHD and HIV-related muscle loss. What causes growth hormone deficiency? GHD is a relatively rare condition. Slowed growth, short stature, and ...
Geniohyoid: by a branch from the hypoglossal nerve consisting of fibres from the C1 nerve. Sternohyoid, omohyoid, sternothyroid are supplied by ansa cervicalis. Thyrohyoid: by a branch of hypoglossal nerve but the fibres are all 'hitch-hiking' from C1.
Tylenol can be used to treat a few different conditions, such as: mild to moderate pain, fever, headaches, muscle aches, toothaches, backaches, colds, and discomfort from a vaccine, says Walia.