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In veterinary anatomy, the term hyoid apparatus is the collective term used to refer to the bones of the tongue—a pair of stylohyoidea, a pair of thyrohyoidea, and unpaired basihyoideum [21] —and associated, upper-gular connective tissues. [22] In humans, the single hyoid bone is an equivalent of the hyoid apparatus. [23]
Anatomy figure: 34:02-09 at Human Anatomy Online, SUNY Downstate Medical Center "Anatomy diagram: 25420.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2013-12-31. Diagram Archived 2005-09-09 at the Wayback Machine
Its anterior surface is in relation with the thyrohyoid muscle, sternohyoid muscle, and omohyoid muscles, and with the body of the hyoid bone. It is pierced by the superior laryngeal nerve . [ 2 ] It is also pierced the superior thyroid artery , where there is a thickening of the membrane.
The hyoid apparatus is the collective term used in veterinary anatomy for the bones which suspend the tongue and larynx. [1] It consists of pairs of stylohyoid, thyrohyoid, epihyoid and ceratohyoid bones, and a single basihyoid bone. [2] The hyoid apparatus resembles the shape of a trapeze, [3] or a bent letter "H". [4]
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 .
The entire superior edge of the thyroid cartilage is attached to the hyoid bone by the thyrohyoid membrane. The thyroid cartilage is found between the levels of the C4 to C5 vertebrae. The oblique line is a line on the thyroid cartilage. It marks the upper lateral borders of the thyroid gland.
anterior surface of body of hyoid bone: C1 via hypoglossal nerve: elevates hyoid and tongue upward during swallowing?? 2 1 sternohyoid: Neck, Infrahyoid, Right/left sternum, manubrium: hyoid bone: superior thyroid artery: ansa cervicalis: depresses hyoid?? 2 1 sternothyroid: Neck, Infrahyoid, Right/left sternum, manubrium: thyroid cartilage ...
Together, the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth. [2] 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.