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Topic: Hyoid bone

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	Hyoid bone - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-31)
		The hyoid bone ("Lingual Bone") is a bone in the human neck, not articulated to any other bone.
		The hyoid bone is shaped like a horseshoe, and is suspended from the tips of the styloid processes of the temporal bones by the stylohyoid ligaments.
		They are connected to the body of the bone by fibrous tissue, and occasionally to the greater cornua by distinct diarthrodial joints, which usually persist throughout life, but occasionally become ankylosed.
	www.sciencedaily.com /encyclopedia/hyoid_bone (676 words)

	Mandibulohyoid Distance in Difficult Laryngoscopy
		The vertical distance between the mandible and the hyoid bone (mandibulohyoid distance) was measured and the positions of the mandibular angle and hyoid bone determined in relation to the cervical vertebrae.
		The mandibulohyoid distance, defined as the vertical distance between the mandible and the hyoid bone, was measured from the upper margin of the hyoid bone vertically upward to the lower margin of the mandible.
		The mandibulohyoid (MH) distance was measured from the upper margin of the hyoid bone (H) vertically upward to the lower margin of the mandible (M).
	www.achi.com /support/articles/mhdist.htm (2218 words)

	Neck muscles
		It assists the mylohyoid and geniohyoid muscles in moving the hyoid bone and the tongue upward and forward and then upward and backward during the process of swallowing.
		It originates from the side of the wishbone-shaped hyoid bone in the throat and passes vertically to be inserted inside of the tongue.
		It originates from the first bone of the sternum (breast bone) and from the edge of the cartilage of the first rib and is inserted into the thyroid cartilage.
	www.american.edu /adonahue/m7neck.htm (1499 words)

	CHAPTER 42: THE SKULL AND HYOID BONE
		The tympanic nerve (from cranial nerve 9) and the auricular branch of cranial nerve 10 pierce the skull in or near the jugular fossa.
		The groove between the petrous part of the temporal bone and the greater wing of the sphenoid bone is occupied in vivo by the cartilaginous part of the auditory tube.
		42-19 The" sphenoidal ridge" is the posterior border of the lesser wing of the sphenoid bone.
	www.dartmouth.edu /~humananatomy/part_8/chapter_42.html (6737 words)

	Hyoid bone (Site not responding. Last check: 2007-10-31)
		The hyoid bone (Os Hyoideum; "Lingual Bone") is a bone in the human neck, not articulated to any other bone; itis supported by the muscles of the neck and in turn supports the root of the tongue.
		The hyoid bone is shaped like a horseshoe, and is suspended from the tips of the styloid processes of the temporalbones by the stylohyoid ligaments.
		They are connected to the body of the bone by fibrous tissue, and occasionally to the greater cornua by distinct diarthrodial joints, which usually persist throughoutlife, but occasionally become ankylosed.
	www.therfcc.org /hyoid-bone-86589.html (637 words)

	IV. Myology. 5c. The Supra- and Infrahyoid Muscles. Gray, Henry. 1918. Anatomy of the Human Body.
		During the act of deglutition they raise the hyoid bone, and with it the base of the tongue; when the hyoid bone is fixed by its depressors and those of the larynx, they depress the mandible.
		During the first act of deglutition, when the mass of food is being driven from the mouth into the pharynx, the hyoid bone and with it the tongue, is carried upward and forward by the anterior bellies of the Digastrici, the Mylohyoidei, and Geniohyoidei.
		The central tendon of this muscle varies much in length and form, and is held in position by a process of the deep cervical fascia, which sheaths it, and is prolonged down to be attached to the clavicle and first rib; it is by this means that the angular form of the muscle is maintained.
	www.bartleby.com /107/112.html (1384 words)

	NationMaster - Encyclopedia: Hyoid bone
		Ossification is the process of bone formation, in which connective tissues, such as cartilage are turned to bone or bone-like tissue.
		It anchors muscles, especially those of the tongue, and is the only bone in the body which is not linked to another.
		The hyoid bone serves as a fulcrum for muscles involved in swallowing.
	www.nationmaster.com /encyclopedia/Hyoid-bone (1166 words)

	II. Osteology. 5b. 9. The Hyoid Bone. Gray, Henry. 1918. Anatomy of the Human Body.
		The lesser cornua are situated in the line of the transverse ridge on the body and appear to be morphological continuations of it (Parsons 46).
		See article on “The Topography and Morphology of the Human Hyoid Bone,” by F. Parsons, Journal of Anatomy and Physiology, vol.
		These ligaments in many animals are distinct bones, and in man may undergo partial ossification.
	www.bartleby.com /107/45.html (580 words)

	Forensic significance of the polymorphism of hyoid bone shape
		The hyoid bones were extensively polymorphic in both dimensions studied, the span or breadth, and the length of the cornua.
		Hyperbolic hyoid bones could be distinguished from hyoid bones with a parabolic configuration on the basis of the metric data although there was considerable overlap in the dimensions of hyoid bones of both configurations.
		The metric features of the fractured hyoid bones were attributable to the predominance of females in the group of fractured hyoid bones studied, an observation that is anticipated because the majority of strangulations involve female decedents.
	www.astm.org /JOURNALS/FORENSIC/PAGES/2866.htm (336 words)

	hyoid - definition by dict.die.net
		hyoid adj : of or relating to the hyoid bone n : a U-shaped bone at the base of the tongue that supports the tongue muscles [syn: hyoid bone, os hyoideum]
		Hyoid arch (Anat.), the arch of cartilaginous or bony segments, which connects the base of the tongue with either side of the skull.
		Hyoid bone (Anat.), the bone in the base of the tongue, the middle part of the hyoid arch.
	dict.die.net /hyoid (99 words)

	Medical College of Wisconsin - Hyoid Myotomy Surgery
		During hyoid myotomy, the hyoid bone is exposed in the neck.
		The muscles are separated, and a small mid-portion of the hyoid bone is exposed.
		Fascia lata (band of fibrous tissue) suture or other strong materials are used to pull the hyoid bone forward to the mandible (hyomandibular suspension).
	www.mcw.edu /display/router.asp?docid=2494 (227 words)

	Chapter 13 On the Bone Resembling the Greek Upsilon
		The human has this bone quite differently constructed than the quadruped, which until now we have dealt with, and it is the broadest ossicle of the hyoid bone (A, B, *, C in fig.
		These ossicles, attached to the superior sides of the hyoid bone, are not always observed in an equal number, but usually three or four are seen on each side.
		The hyoid bone is therefore neither free-floating nor contiguous to any bone, as the connection of the superior sides to the temporal bones shows.
	vesalius.northwestern.edu /chapters/FA.1.13.html (1183 words)

	June Issue.indd
		The hyoid bone would appear to provide a readily identifiable (radiographic) anatomic landmark, whose position is the result of a multifactorial postural system, which is closely aligned with maintaining respiratory function.
		In the first instance, the relationships existing between AHI and the measurements pertaining to the position of the hyoid bone (H) relative to the third cervical vertebra and to the anterior cranial base (S) were analysed to determine the Spearman’s correlation coefficients.
		These results suggest that the inter-subject variability in hyoid bone position as related to the point S on the anterior cranial base, which one might attribute to postural differences and to expected differences in craniofacial dimensions (size), may be less significant than expected.
	www.rcsed.ac.uk /journal/svol2%5F3/2030004.html (2866 words)

	Anatomy & Physiology of the Larynx
		The larynx is suspended from the hyoid bone, which is significant in that it is the only bone in the body that does not articulate with any other bone.
		The extrinsic muscles are described as such because they attach to a site within the larynx and to a site outside of the larynx (such as the hyoid bone, jaw, etc.).
		There are eight extrinsic laryngeal muscles, and they are further divided into the suprahyoid group (above the hyoid bone) and the infrahyoid group (below the hyoid bone).
	www.gbmc.org /voice/anatomyphysiologyofthelarynx.cfm (722 words)

	Ask an Expert: Pain in area of hyoid bone left side
		He believes that the hyoid bone is scraping against the trachea and throat structures when I swallow or move and this is causing my pain.
		The hyoid bone is located at the base of the tongue, has multiple muscles attached to it, and stabilizes the tongue and throat during swallowing.
		Pain in the area of the hyoid may be caused by the attached muscles, the styloid bone, the carotid artery, the tongue, etc. Most of these would likely be due to an inflammatory process most likely treatable by a course of a strong non-steroidal anti-inflammatory drug.
	www.netwellness.org /question.cfm/30911.htm (1158 words)

	Hyoid Bone
		This image shows the human hyoid bone, which helps to support the tongue and serves as an attachment point for several muscles that help to elevate the larynx during swallowing and speech.
		The hyoid bone is unique in that it is the only bone of the body that does not articulate with any other bone.
		Instead, it is suspended above the larynx where it is anchored by ligaments to the styloid processes of the temporal bones of the skull.
	bioweb.uwlax.edu /APlab/Table_of_Contents/Lab_03/Hyoid_Bone/hyoid_bone.html (102 words)

	Dept of Anth: Hyoid Page
		The hyoid is a single small "U" shaped bone in the adult which does not articulate with any other bone.
		It is suspended from the styloid process of each temporal bone by means of the stylohyoid ligaments.
		It is located in the mid-sagittal plane, at the front of the throat, and beneath the mandible but above the larynx near the level of the third cervical vertebrae.
	www.csuchico.edu /anth/Module/hyoid.html (171 words)

	Neck lump 2
		The tract is dissected between the infrahyoid muscles up to the hyoid bone.
		The central portion of the bone is excised.
		Failure to excise the central portion of the hyoid bone results in an increased risk of recurrence.
	www.surgical-tutor.org.uk /tutorials/thyroglossal.htm (524 words)

	SignOnSanDiego.com > News > Military -- Judge postpones a court-martial, rips prosecutors
		The fact that inmate Nagem Sadoon Hatab's rib cage and hyoid bone are missing poses "serious problems that are interfering with a fair and just resolution in this case," the judge, Col. Robert Chester, said during yesterday's hearing.
		She said he died from either strangulation or asphyxiation caused by a broken hyoid bone in his neck.
		The pathologist testified at an earlier hearing that she sent the hyoid bone to the Institute of Pathology.
	www.signonsandiego.com /news/military/20040910-9999-7m10horse.html (791 words)

	Larynx
		the hyoid bone ossifies completely in middle life; the body articulates with the greater horns via cartilage and with the lesser horns via fibrous joints prior to ossification; an important site for muscle attachments (suprahyoid and infrahyoid muscle groups)
		it is connected superiorly to the greater horn of the hyoid bone by the lateral thyrohyoid ligament
		it is connected to the hyoid bone by the median thyrohyoid ligament
	anatomy.uams.edu /anatomyhtml/larynx.html (2355 words)

	Repose Hyoid Suspension (Site not responding. Last check: 2007-10-31)
		Two bone screws are inserted into the inferior border of the mandible, while sutures are then passed around the hyoid bone via an external incision in the neck.
		The hyoid bone is then advanced approximately 6-8 mm toward the mandible, thereby correcting hypo-pharyngeal collapse.
		InfluENT's Hyoid Suspension procedure is less invasive and time consuming when compared to previous techniques of hyoid advancement to the mandible or thyroid cartilage.
	www.influ-ent.com /prod02.htm (172 words)

	RTOG - Table Neck CTV
		Caudal edge of lateral process of C1 Caudal edge of the body of hyoid bone
		Medial edges of thyroid gland, skin and ant.-medial edge of sternocleidomastoid m.
		Midline structure lying between the medial borders of the anterior bellies of the digastric muscles
	www.rtog.org /hnatlas/tableneck.html (167 words)

	Age and sex-related variation in hyoid bone morphology
		Although the relationship between hyoid bone shape and fracture pattern figures prominently in forensic investigations of strangulation, few quantitative data exist on age and sex differences in hyoid morphology.
		An image analysis system was used to take a series of 30 measurements on digitized radiographs of 315 hyoid bones from people of known age and sex.
		Statistical analysis of these data shows that there is a continuous distribution of hyoid bone shapes and that most bones are highly symmetrical.
	www.astm.org /JOURNALS/FORENSIC/PAGES/3055.htm (275 words)

	Correcting Hyoid Bone Problem (Site not responding. Last check: 2007-10-31)
		The hyoid is the only floating bone in the body.
		It is about 2 inches long, running parallel to the ground, and covers the voicebox, being held in place by three sets of muscles.
		go from left and right bottom of the bone to the left and right collarbone.
	www.empyreanquest.com /Healing/hyoid.htm (93 words)

	Physical Disabilities Branch - Research (Site not responding. Last check: 2007-10-31)
		Shown here are the swallowing motions of the hyoid displayed by changes in the energy patterns of sound.
		Three high energy areas are shown as increased amplitudes on a horizontal baseline, indicating raising, forward, and backward motion of the hyoid bone.
		The line on the image indicates the Doppler beam, while the sample volume is indicated by a dot on the line.
	pdb.cc.nih.gov /research/hyoid.htm (167 words)

	Thyroglossal Duct Cyst- Health Encyclopedia and Reference
		These ducts or branches merge into a single duct at the level of the hyoid bone.
		Thyroglossal duct cysts most often present with a palpable (able to be felt) asymptomatic midline neck mass at or below the level of the hyoid bone.
		The intimate association of the tract with hyoid bone mandates simultaneous removal of the central portion of the hyoid bone to ensure complete removal of the tract (Sistrunk procedure).
	www.healthcentral.com /encyclopedia/408/685/Thyroglossal_Duct_Cyst.html (471 words)

	Chondrosarcoma of the Hyoid Bone: Imaging, Surgical, and Histopathologic Correlation -- Hirunpat et al. 27 (1): 123 -- ...
		Chondrosarcoma of the Hyoid Bone: Imaging, Surgical, and Histopathologic Correlation -- Hirunpat et al.
		Chondrosarcoma of the Hyoid Bone: Imaging, Surgical, and Histopathologic Correlation
		SUMMARY: Chondrosarcoma of the hyoid bone is rare.
	www.ajnr.org /cgi/content/abstract/27/1/123 (148 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		I have surgery schedule to snip the hyoid bone.
		I would be curious to know what the suspected mechanism would be for neuralgia caused by the hyoid bone.
		The closest nerve to the hyoid is the hypoglossal n.
	ofcn.org /cyber.serv/hwp/hwc/ent/news/ent318.html (372 words)

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