Infrahyoid


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Related to Infrahyoid: hyoid muscles

In`fra`hy´oid


a.1.(Anat.) Same as Hyosternal (a).
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The Stomatognathic System (SS) is composed of static structures (mandible, maxilla, dental arches, TMJs and hyoid bone) and dynamic structures (masticatory, supra and infrahyoid muscles and tongue, lips and cheek muscles) that act together (1) as they are balanced and controlled by the central nervous system performing the stomatognathic functions: suction, breathing, swallowing, speech and chewing.
The lesion were removed with sectioning, the remaining bone cortexes was preserved and the elastics are used to minimize the mouth opening by diminishing the tension forces (18) on the mandible by presenting a force opposite of infrahyoid muscles which are active during mouth opening.
The hypoglossal nerve is the twelfth cranial nerve, and is a pure motor nerve that is involved in the movements of the tongue and infrahyoid muscles.
2 Within the regions of the upper aerodigestive tract, palatine tonsil, posterior tongue and vallecula are common sites of suprahyoid impaction and piriform fossa, larynx, cricopharyngeus, cervical oesophagus and thoracic oesophagus are less common sites of infrahyoid impaction.
In the infrahyoid neck, the fascia encircles the hypopharynx, larynx, and thyroid.
The activity of masseter, submental, and infrahyoid groups were measured using sEMG during three repetitions of different swallowing tasks.
Infrahyoid muscles are reflected downward exposing the superior half of the thyroid lamina (black arrow), and an inferiorly based thyroid perichondrial flap is created (white arrow).
1,2] 90% of these are lingual thyroid and others may be sublingual (Suprahyoid, infrahyoid at the level of hyoid bone), prelaryngeal, mediastinal; though other unusual sites have also been accounted for: trachea, submandibular, lateral cervical regions, axilla, palatine tonsils, carotid bifurcation, iris of eye, pituitary gland, heart, thymus, oesophagus, duodenum, gallbladder, stomach.
When it comes to the height, over 82% of TDC are located at the infrahyoid muscles, and only 5% at the suprahyoid ones [12].
Surgical options for OSA management depend on the levels of obstruction that include septorhinoplasty, palatal surgery, maxillofacial surgery, hyoid suspension, infrahyoid myotomy, mandibular advancement, mandibular osteotomy, midline glossectomy, and tracheostomy.
He had a horizontal cervical incision at the infrahyoid level in zone 2 of the neck 10 cm in length.
When applying NMES, mylohyoid, thyrohyoid, suprahyoid, infrahyoid, and geniohyoid muscle contractions are tried to be activated through the electrodes placed on the submental and laryngeal regions in the anterior neck (1,2,13).