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The body of the hyoid bone is the central part of the hyoid bone. [clarification needed]At the front, the body is convex and directed forward and upward. It is crossed in its upper half by a well-marked transverse ridge with a slight downward convexity, and in many cases a vertical median ridge divides it into two lateral halves.
The two bellies connect at the intermediate tendon. The intermediate tendon passes through a connective tissue loop attached to the hyoid bone. [1] The mylohyoid muscles are thin, flat muscles that form a sling inferior to the tongue supporting the floor of the mouth. The geniohyoids are short, narrow muscles that contact each other in the ...
The muscle inserts onto the body of hyoid bone at the junction of the body and greater cornu. [ 3 ] The site of insertion is situated immediately superior to that of the superior belly of omohyoid muscle .
The two mylohyoid muscles arise from the mandible at the mylohyoid line, which extends from the mandibular symphysis in front to the last molar tooth behind. The posterior fibers pass inferomedially and insert at anterior surface of the hyoid bone. The medial fibres of the two mylohyoid muscles unite in a midline raphe (where the two muscles ...
Structures that are medial/deep to the hyoglossus are the glossopharyngeal nerve (CN IX), the stylohyoid ligament and the lingual artery and lingual vein.. The lingual vein passes medial to the hyoglossus.
The geniohyoid muscle brings the hyoid bone forward and upwards. [2] This dilates the upper airway , assisting respiration . [ 4 ] During the first act of deglutition , when the mass of food is being driven from the mouth into the pharynx, the hyoid bone, and with it the tongue, is carried upward and forward by the anterior bellies of the ...
The sternohyoid muscle is a bilaterally paired, [1] long, [1] thin, [1] [2] narrow strap muscle [2] of the anterior neck. [1] It is one of the infrahyoid muscles. It is innervated by the ansa cervicalis. It acts to depress the hyoid bone. The sternohyoid muscle is a flat muscle located on both sides of the neck, part of the infrahyoid muscle group.
It attaches at the lesser horn of hyoid bone [1] [2] inferiorly, [citation needed] and (the apex of [1]) the styloid process of the temporal bone [1] [2] superiorly. [citation needed] The ligament gives attachment to the superior-most fibres of the middle pharyngeal constrictor muscle. [1]