Hyoid bone

Question 1

what is the hyoid bone and what does it do

Answer 1

a ‘U’ shaped structure located in the anterior neck. It lies at the base of the mandible (approximately C3), where it acts as a site of attachment for the anterior neck muscles.

Question 2

what is the structure of the hyoid bone

Answer 2

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

Question 3

what is the hyoid muscular the site of attachment for in the suprahyoid

Answer 3

Digastric
Stylohyoid
Geniohyoid
Mylohyoid

Question 4

what is the hyoid muscular the site of attachment for in the oral cavity and pharynx

Answer 4

Middle pharyngeal constrictor
Hyoglossus
Genioglossus

Question 5

what is the hyoid muscular the site of attachment for in the infrahyoid

Answer 5

Thyrohyoid
Omohyoid
Sternohyoid

Question 6

what are the ligment attachment of the hyoid bones

Answer 6

There are three main ligaments that attach to the hyoid bone – stylohyoid, thyrohyoid and hyoepiglottic. They act to support the position of the hyoid in the neck.

Stylohyoid ligament – extends from the styloid process of the temporal bone to the lesser horn of the hyoid bone.
Thyrohyoid membrane – originates from the superior border of the thyroid cartilage and attaches to the posterior surface of the hyoid bone and the greater horns.
Hyoepiglottic ligament – connects the hyoid bone to the anterior aspect of the epiglottis.