The hyoid bone is a ‘U’ shame structure located in the anterior neck. It lies in ~ the base of the mandible (approximately C3), where it acts together a website of attachment for the anterior neck muscles.

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In this article, we shall look at the anatomical structure, muscular attachments and clinical relevance of the hyoid bone.


Fig 1 – place of the hyoid bone in the neck.


Structure

The hyoid is written of a body, two greater horns and two lesser horns:

Body – the central part of the bone. It has actually an anterior convex surface and also a concave posterior surface.Greater horn – jobs from each end of the human body in a posterior, superior and lateral direction. The acts together a website of attachment for plenty of neck muscles.Lesser horn – arises from the superior aspect of the hyoid bone, near the origin of the better horn. It projects superoposteriorly (toward the styloid process of the temporal bone). The stylohyoid ligament attaches to the apex the the lesser horn.

Fig 2 – The significant parts the the hyoid bone – body, better horn and lesser horn.


Muscular Attachments

The hyoid bone is distinctive in the reality that it does not articulate with any type of other bones, and is suspended in place by the muscles and also ligaments that connect to it.

Indeed, the acts as a site of attachments for many muscles in the neck:

Oral Cavity and also PharynxSuprahyoidInfrahyoid
Middle pharyngeal constrictorHyoglossusGenioglossusDigastricStylohyoidGeniohyoidMylohyoidThyrohyoidOmohyoidSternohyoid

Ligament Attachments

There space three main ligaments that affix to the hyoid bone – stylohyoid, thyrohyoid and also hyoepiglottic. They act to assistance the place of the hyoid in the neck.

Stylohyoid ligament – extends native the styloid process of the temporal bone to the lesser horn of the hyoid bone.Hyoepiglottic ligament – associate the hyoid bone come the anterior facet of the epiglottis.

Clinical Relevance: Fracture of the Hyoid Bone

The hyoid is well protected by the mandible and cervical spine, therefore fractures are reasonably rare.

Hyoid skeleton fractures space characteristically associated with strangulation (found in approximately 1/3 of every homicides through strangulation). It is because of this a far-reaching post-mortem finding.

They can likewise occur together a result of trauma, through clinical attributes of pain ~ above speaking, odynophagia and dyspnoea.


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Traumatic hyoid bone fracture – a case report and also review the the literature

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Journal the the Canadian Chiropractic Association


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The hyoid bone is a "U" shame structure located in the anterior neck. The lies in ~ the base of the mandible (approximately C3), wherein it acts as a site of attachment because that the anterior neck muscles.

In this article, us shall look at the anatomical structure, muscular attachments and clinical relationship of the hyoid bone.


Fig 1 - place of the hyoid bone in the neck.

Structure

The hyoid is created of a body, two better horns and also two lesser horns:

Body - the central part the the bone. It has actually an anterior convex surface and a concave posterior surface.Greater horn - projects from each end of the human body in a posterior, superior and lateral direction. It acts together a site of attachment for plenty of neck muscles.Lesser horn - arises from the superior facet of the hyoid bone, close to the beginning of the better horn. It jobs superoposteriorly (toward the styloid procedure of the temporal bone). The stylohyoid ligament attaches to the apex that the lesser horn.


Fig 2 - The major parts that the hyoid bone - body, higher horn and also lesser horn.

Muscular Attachments

The hyoid bone is distinct in the fact that it does no articulate with any other bones, and also is suspended in place by the muscles and ligaments that attach to it.

Indeed, that acts together a website of attachments for plenty of muscles in the neck:

Oral Cavity and PharynxSuprahyoidInfrahyoid
Middle pharyngeal constrictorHyoglossusGenioglossusDigastricStylohyoidGeniohyoidMylohyoidThyrohyoidOmohyoidSternohyoid

Ligament Attachments

There space three main ligaments that affix to the hyoid bone - stylohyoid, thyrohyoid and also hyoepiglottic. They plot to assistance the place of the hyoid in the neck.

Stylohyoid ligament - extends native the styloid procedure of the temporal bone to the lesser horn that the hyoid bone.Hyoepiglottic ligament - connect the hyoid bone to the anterior aspect of the epiglottis.


Clinical Relevance: Fracture that the Hyoid Bone

The hyoid is well defended by the mandible and cervical spine, therefore fractures are reasonably rare.

Hyoid skeleton fractures are characteristically linked with strangulation (found in around 1/3 of all homicides by strangulation). It is thus a far-ranging post-mortem finding.

They can likewise occur as a result of trauma, through clinical functions of pain on speaking, odynophagia and dyspnoea.

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