This quadrilateral muscle appearing like an upward continuation of the sternothyreoideus.It belongs to the infrahyoid muscles group.. [19] The howler monkey Alouatta has a pneumatized hyoid bone, one of the few cases of postcranial pneumatization of bones outside Saurischia. The hyoid is situated at the front, or anterior, part of the neck between the jaw bone and the thyroid cartilage, and is firmly secured to the thyroid cartilage by ligaments. We are going to learn all about hyoid bone anatomy of in this lecture. The hyoid bone provides attachment to the muscles of the floor of the mouth and the tongue above, the larynx below, and the epiglottis and pharynx behind. Hyoid apparatus: a little-known complex of bones and its "contribution" to proboscidean evolution, "Upper airway collapsibility is associated with obesity and hyoid position", "Development and validation of a computational finite element model of the rabbit upper airway: simulations of mandibular advancement and tracheal displacement", "Hyoid Apparatus - Definition of Hyoid Apparatus", https://en.wikipedia.org/w/index.php?title=Hyoid_bone&oldid=992025116, Wikipedia articles incorporating text from the 20th edition of Gray's Anatomy (1918), Articles with unsourced statements from January 2014, Creative Commons Attribution-ShareAlike License. The hyoid provides an attachment site for muscles that control movements of the larynx.. [11][12], A large number of muscles attach to the hyoid:[13]. [18] A surgical procedure that aims to potentially increase and improve the airway is called hyoid suspension. One of the easiest diagnostic criteria for sleep apnoea is cephalometric diagnosis of the hyoid bone. [6] Its descent in living creatures is not unique to Homo sapiens,[7] and does not allow the production of a wide range of sounds: with a lower larynx, men do not produce a wider range of sounds than women and 2-year-old babies. Unlike other bones, the hyoid is only distantly articulated to other bones by muscles or ligaments. Its name is derived from Greek hyoeides 'shaped like the letter upsilon (υ)'.[4][5]. The mandible is present at the base of the hyoid bone. Your speech therapist may perform specific exercises to help you swallow better, and these may involve getting familiar with your hyoid bone. Where is the hyoid bone located? Remember, the windpipe is built for air, not things., Another thing the larynx does is produce sound; singers and speakers often refer to the larynx as the voice box. The hyoid bone is located in the mid-neck, above the thyroid cartilage, anterior to the trachea. Chris Vincent, MD, is a licensed physician, surgeon, and board-certified doctor of family medicine. The greater horns project backward from the outer borders of the body; they are flattened from above downward and taper to their end, which is a bony tubercle connecting to the lateral thyrohyoid ligament. The hyoid is situated at the front, or anterior, part of the neck between the jaw bone and the thyroid cartilage, and is firmly secured to the thyroid cartilage by ligaments. [8] The discovery of a modern-looking hyoid bone of a Neanderthal man in the Kebara Cave in Israel led its discoverers to argue that the Neanderthals had a descended larynx, and thus human-like speech capabilities. The single hyoid bone is a unique component of the axial skeleton because it does not articulate with any other bone. It is a U-shaped structure lying between the root of the tongue and mandible and the thyroid cartilage. 2016;140(4):2614. doi:10.1121/1.4964509, Pauloski BR. [citation needed], The lesser horns are two small, conical eminences, attached by their bases to the angles of junction between the body and greater horns of the hyoid bone. The hyoid is a U-shaped bone located above the larynx and inferior to the base of the skull. Hyoid bone is located between the chin and the thyroid cartilage. Until middle age the connection between the body and greater cornu is fibrous. Like Progress said, the hyoid is unique in that it doesn't articulate directly with other bones, so you can find it with your fingers at the base of the mandible and move it side to side. The hyoid bone is the only bone that has no direct contact with any other bone in the human body (see Figure 1). 137–146. [9] However, other researchers have claimed that the morphology of the hyoid is not indicative of the larynx's position. Moving upward along the midline of the neck from its base, the first cartilage you can feel is the cricoid cartilage. At the front, the body is convex and directed forward and upward. Instead, the hyoid is located just above the lump-like area. The hyoid bone is located between the chin and the thyroid cartilage. It belongs to a group of muscles called infrahyoid muscles, along with three others: sternohyoid, sternothyroid and thyrohyoid. It is also thought to play a key role in keeping the upper airway open during sleep,[14][15] and as such, the development and treatment of obstructive sleep apnea (OSA; characterized by repetitive collapse of the upper airway during sleep). This is due to its location, which generally … In early life the outer borders of the body are connected to the greater horns by synchondroses; after middle life usually by bony union. It resides at the level of the third cervical vertebra, attaching indirectly, by means of tendons to muscles of the tongue, the floor of the mouth and the anterior neck.1 Although it is small, the hyoid bone is only rarely fractured. The portion of the vertical ridge above the transverse line is present in a majority of specimens, but the lower portion is evident only in rare cases. Hyoid Bone Location. The hyoid bone is located in the neck and can be palpated immediately above the thyroid cartilage (the protuberance on the anterior surface of the neck). Ossification commences in the greater cornua toward the end of fetal development, in the hyoid body shortly afterward, and in the lesser cornua during the first or second year after birth. It sits between the chin and the thyroid cartilage and is instrumental in the function of swallowing and tongue movements.. The suprahyoid branch of the lingual artery runs along the upper border of the hyoid bone and supplies blood to the attached muscles. Edition. 7, July 2000 (. The hyoid bone is an independent bone that does not contact any other bone and thus is not part of the skull (Figure 17). [10] It is necessary to take into consideration the skull base, the mandible and the cervical vertebrae and a cranial reference plane. The greater horns derive from the third pharyngeal arch. 1:41 - Muscle attachments of Hyoid bone 2:09 - Other names of Hyoid bone 2:18 - Functions of Hyoid bone 2:52 - Bone anatomy landmarks 3:26 - Link to Hyoid Bone Anatomy Lecture . 4, No. [22], This article incorporates text in the public domain from page 177 of the 20th edition of Gray's Anatomy (1918), American heritage dictionary for English language. Anne Asher, ACE-certified personal trainer, health coach, and orthopedic exercise specialist, is a back and neck pain expert. 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. Rehabilitation of dysphagia following head and neck cancer. The little talked about hyoid bone is a unique part of the human skeleton for a number of reasons. The anterior surface gives insertion to the, At the back, the smooth, concave, directed backward and downward, and separated from the, Above, the body is rounded, and gives attachment to the hyothyroid membrane and some, Below, the body affords insertion medially to the sternohyoid and laterally to the omohyoid and occasionally a portion of the, This page was last edited on 3 December 2020, at 02:18. 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