0. hyoid meaning: 1. a U-shaped bone in the middle of the neck between the chin and the thyroid that supports the…. It’s the only free-floating bone in the human body, meaning it’s not connected to any other bone. The body is approximately 2.5 cm wide and one centimeter thick. The hyoid bones and prism were each scanned with CT acquisition parameters of 14.0 cm FOV, 100.0 mÅ, 80 kV. These are the hyoglossus and middle pharyngeal constrictor muscles. Like the digastric muscle, it also helps to open the mouth. The shorter, stumpier lesser horns of the hyoid bone are an attachment point for the stylohyloid ligament. Instead, the hyoid connects to ligaments and muscles, including the tongue. Thieme Atlas of Anatomy: Neck and Internal Organs. The hyoid bone is the only bony structure in the larynx and the only bone in humans that does not articulate with other bones. Add word 100. When the hyoid is elevated, the airway dilates. Search meanings in Urdu to get the better understanding of the context. hyoid bone a horseshoe-shaped bone at the base of the tongue. The primary function of the hyoid bone is to serve as an attachment structure for the tongue and for muscles in the floor of the oral cavity. A hyoid fracture can also occur via blunt force trauma to the neck. When we swallow food, the airway must close to stop food particles from entering the lungs. hyoid bone . The hyoid bone is the only bony structure in the larynx and the only bone in humans that does not articulate with other bones. From which paired bone is the hyoid bone suspended? A U-shaped bone at the base of the tongue that supports the muscles of the tongue. This connects the top of the hyoid body to the front (anterior surface) of the epiglottis. It is commonly associated with strangulation and rarely occurs in isolation. The hyoid bone is the only bony structure in the larynx and the only bone in humans that does not articulate with other bones. Retrieved from: Schünke M, Schulte E, Ross LM, Lamperti ED, Schumache U. It can be seen during endotracheal intubation where a breathing tube is passed through the vocal cords (the edges of the triangular hole in the image) and towards the lungs. At the beginning of a swallowing motion, the geniohyoid and mylohyoid muscles elevate the bone and the floor of the mouth simultaneously. noun. Other muscles attached to the hyoid bone are the two mylohyoid muscles, which form a sort of diaphragm for the floor of the mouth; the thyrohyoid, arising from the thyroid cartilage, the largest cartilage of the larynx; and the omohyoid, which originates from the upper margin of the shoulder blade and from the suprascapular ligament. Instead, it attaches to cartilage, muscles, and ligaments. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Get a Britannica Premium subscription and gain access to exclusive content. Pronounce word 150. n. A U-shaped bone at the base of the tongue that supports the muscles of the tongue. bone in the neck. In 50% of strangulations and 27% of hangings, hyoid fractures occur. Four pairs of suprahyoid muscles connect the lingual bone to the mandible, skull, and tongue. A broken hyoid bone can indicate strangulation. Synonyms . os hyoideum. 1 : of or relating to the hyoid bone. A vertical mid-line ridge divides the body into two halves. 2 : of, relating to, or being the second postoral branchial arch from which the hyoid bone of the higher vertebrates is … { noun neuter } bone in the neck horseshoe-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage Replace the values … A membrane called the hyothyroid membrane separates the tongue bone from the soft tissue of the epiglottis. Ring in the new year with a Britannica Membership. hyoid definition: 1. a U-shaped bone in the middle of the neck between the chin and the thyroid that supports the…. The bone is situated at the root of the tongue in the front of the neck and between the lower jaw and the largest cartilage of the larynx, or voice box. It has no articulation with other bones. Define hyoid bone. The Greeks named the upside-down letter U (upsilon) ‘hyodeides’ and this is where the tongue bone gets its most commonly-used name. Hyoid suspension brings the bone forward by fixing it to the lower jaw (below). Hyoid Bone. “With Rebecca, the left edge, the left end of the hyoid has been fractured,” Holes told Oxygen. It is a bone in the neck which protects the esophagus and facillitates a wide range of muscle movements required for speaking and swallowing. The hyoglossus muscles originate on each side from the whole length of the greater cornua and also from the body of the hyoid. Vote & Rate 5. Hyoid position is a contributing factor to obstructive sleep apnea. We also have four pairs of infrahyoid muscles that run from the hyoid bone to the shoulders. Add collection 200. The two geniohyoid muscles originate close to the point at which the two halves of the lower jaw meet; the fibres of the muscles extend downward and backward, close to the central line, to be inserted into the body of the hyoid bone. As most cartoons show extremely well, opening the mouth is the result of dropping the lower jaw or mandible; the upper jaw (maxilla) does not have such an exaggerated effect. Instead, it attaches to cartilage, muscles, and ligaments. A pair of lesser cornu (or horns). The hyoid bone. hyoid bone synonyms, hyoid bone pronunciation, hyoid bone translation, English dictionary definition of hyoid bone. Thanks for contributing. All Free. Two groups of muscles – the suprahyoid (above the hyoid) and infrahyoid (below the hyoid) muscles – use this bone as a point of attachment. Hyoid bone anatomy is not complicated but many different muscles depend on it as an attachment point. The latter surgery type (carried out with or without suspension) cuts into the muscles of the hyoid to create more room for air to pass through. The hyoglossus depresses and retracts the tongue; the middle pharyngeal constrictor constricts around food that enters through the oropharynx (food bolus), pushing it down to the esophagus. 1 Definition. In OSAS, relaxed muscles and pressure from fatty tissue (OSAS is usually associated with people who are overweight), cause the upper airway to close. Their outer ends generally are overlapped by the large sternocleidomastoid muscles. The hyoid is anchored by muscles from the anterior, posterior and inferior … Dorsal ends of the first and second arches become the three auditory ossicles (the small bones in the middle ear).…, …the thyrohyoid ligaments to the hyoid bone beneath the tongue. Learn more. As the greater horns protrude toward the back of the neck, they become compressed against the third or fourth cervical vertebrae during strangulation. 2. the horseshoe-shaped bone that lies at the base of the tongue and above the thyroid cartilage. Hyoid bone definition is - a U-shaped bone or complex of bones that is situated between the base of the tongue and the larynx and that supports the tongue, the larynx, and their muscles. It is A U-shaped bone at the base of the tongue that supports the muscles of the tongue. It plays important roles in mastication (chewing), tongue movement, phonation, and swallowing. 0. The posterior surface of the body that faces the trachea is concave and, in a neutral position, points slightly backward and downward. The bone is more or less in the shape of a U, with the body forming the central part, or base, of the letter. Originating at the styloid process of the temporal bone of the skull, the stylohyoid muscle also lifts the tongue bone when we start to swallow. 3. a corresponding bone or group of bones in … Noun . The fracture may be associated with gunshot injury, car accidents or induced vomiting. What does hyoid-bone mean? Add a comment 10. As we have already seen, the stylohyoid ligament originates at the styloid process of the temporal bone and extends to the lesser horn of the hyoid bone. 1. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Medical Definition of hyoid. Meanings for hyoid. As the tongue bone is an attachment point for the suprahyoid and infrahyoid muscle groups, and as it is these muscles together with muscles of the oropharynx that keep the airway open, it is easy to understand why this bone plays a role. Biologydictionary.net, August 16, 2020. https://biologydictionary.net/hyoid-bone/. This fact is an important sign in the X-ray diagnosis of certain vocal disorders. Because of this, it is often said to be free-floating. Wikipedia . hyoid: [ hi´oid ] 1. shaped like a U. Hyoid depression is also required when opening the jaw to speak, chewing, and in a lesser extent for certain head movements. Anatomy, Head and Neck, Sternohyoid Muscle. You can see the styloid processes in the following image that shows the back of the skull and spine. It is also involved in swallowing and mouth opening. ), from Modern Latin hyoides, from Greek hyoeides "shaped like the letter U," from hu "letter U" (in later Greek called upsilon) + -oeides "like" (see -oid). Shaped like a U, or like the letter upsilon; specifically, designating a bone or group of bones supporting the tongue. hyoid bone definition in English dictionary, hyoid bone meaning, synonyms, see also 'hyoidal',hyoidean',hyaloid',hypnoid'. They are inserted into the posterior half or more of the sides of the tongue. If a man shows less ossification…, The primary function of the hyoid bone is to serve as an anchoring structure for the tongue. Biologydictionary.net Editors. Os hyoideum. Which of the following is part of the infrahyoid group of muscles? 0. While every effort has been made to follow citation style rules, there may be some discrepancies. As we age, the body and greater horns of the hyoid bone fuse – there is less give and these joints are more likely to snap. Body. 0. This paper includes some interesting photographs of a greater cornua resection during clicking hyoid bone surgery. The lingual bone is the insertion point of these muscles and their origins are at the base of the neck and shoulders, meaning this muscle group pulls the hyoid down. 1; noun hyoid the hyoid bone. Cartilages ossify ( turn to bone ) to variable degrees with age under the influence masculinizing! Which of the following is part of the body, are an attachment point what you ’ ve submitted determine! To cartilage, muscles, the left edge, the hyoid is the hyoepiglottic ligament not with. Cervical vertebrae during strangulation to clipboard ; Details / edit ; omegawiki hyoid to thyroid... Submitted and determine whether to revise the article a Britannica Membership the new year with a Membership! 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