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Topic: Omohyoid muscle

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	Indmedica - Journal of the Anatomical Society of India
		The omohyoid presented a rare variation in the relation of the superior belly along with the intermediate tendon lying medial instead of lateral to the internal jugular vein and piercing through the carotid sheath.
		The omohyoid and sternohyoid are derived from a muscular sheet, which in the lower vertebrates, invests the anterior portion of the neck region and, in man, is represented by the two muscles and middle layer of the deep cervical fascia (Dwight et al.
		Superior belly of the omohyoid muscle between the common carotid arery and internal jugular vein.
	www.indmedica.com /anatomy/aindex1.cfm?anid=53 (1226 words)

	[No title]
		The digastric or submandibular triangle is bordered by the anterior and posterior digastric muscles and the mandible.
		The occipital triangle is bordered by the SCM, the trapezius and the inferior omohyoid muscle.
		The subclavian triangle is bordered by the inferior omohyoid muscle, the SCM and the clavicle.
	www.med.unc.edu /~kimplera/classes/anatomy/hn2.doc (1104 words)

	Human Anatomy - Lab 24 Step 6 (Site not responding. Last check: 2007-10-14)
		Identify the inferior belly of the omohyoid muscle.
		The two bellies of this muscle are connected by an intermuscular tendon, that is held by connective tissue to the anterior surface of the internal jugular vein to prevent the vein from collapsing under negative pressure.
		The position of the inferior belly of the omohyoid muscle divides the posterior triangle into an upper occipital triangle and a lower subclavian (or supraclavicular) triangle.
	ect.downstate.edu /courseware/haonline/labs/l24/060100.htm (80 words)

	Omohyoid muscle
		The omohyoid muscle is a muscle at the front of the neck that consists of two bellies separated by an intermediate tendon.
		The inferior belly continues laterally from the intermediate tendon, and is attached to the upper border of the scapula.
		Omohyoid is innervated by a branch of the cervical plexus, and mostly acts to stabilise the hyoid bone.
	www.mrsci.com /Muscular-System/Omohyoid_muscle.php (86 words)

	CHAPTER 50: THE NECK
		The meningeal branches, the superior root of the ansa cervicalis, the nerve to the thyrohyoid muscle, and the branch to the geniohyoid muscle consist of cervical fibers.
		The cupola and apex of the lung occupy the pyramidal interval between the scalene muscles and the longus colli and are posterior to the subclavian vessels and anterior scalene.
		The infrahyoid muscles are innervated mainly by the ansa cervicalis.
	www.dartmouth.edu /~humananatomy/part_8/chapter_50.html (9365 words)

	belly (Site not responding. Last check: 2007-10-14)
		the inferior belly of the omohyoid muscle, attached to the superior border of the scapula.
		of digastric muscle portion of digastric muscle posterior to the intermediate tendon, attaching to the digastric groove of the temporal bone.
		of omohyoid muscle the superior belly of the omohyoid muscle, attached to the hyoid bone.
	www.painhealth.com /word.asp?q=4820 (104 words)

	omohyoid muscle (anatomy) - General Practice Notebook (Site not responding. Last check: 2007-10-14)
		Omohyoid is one of the infrahyoid muscles of the neck.
		The part of the muscle lateral to the sling is the inferior belly.
		Omohyoid divides the posterior triangle of the neck into the supraclavicular triangle inferiorly and the occipital triangle superiorly.
	www.gpnotebook.co.uk /cache/-1335164848.htm (189 words)

	Glossary.22.- torticollis, tremor, tumor & tympanum
		The space bounded by the anterior belly of the omohyoid muscle, the posterior belly of the digastricus muscle, and the sternomastoid muscle.
		Triangle bounded by the upper border of the clavicle, the posterior border of the sternocleidomastoid muscle, and the anterior border of the trapezius muscle.
		The triangular region of the neck, bounded by the inferior border of the mandible, the stylohyoid muscle and the posterior belly of the digastric muscle, and the anterior belly of the digastric muscle; it is one of three triangles included in the anterior triangle of the neck.
	www.kneelsit.com /glossary/glossary22.html (1415 words)

	Superficial Neck and Anterior Triangle - Dissector Answers
		For example: "omo" means shoulder, and omohyoid goes from the shoulder to the hyoid bone.
		Trauma to the external branch of the superior laryngeal nerve to the cricothyroid muscle during thyroid surgery may result in changes in voice quality.
		Because cricothyroid muscle tenses the vocal cords by pulling the thyroid and cricoid cartilages closer together anteriorly.
	www.med.umich.edu /lrc/coursepages/M1/anatomy/html/nervous_system/antneck_ans.html (1306 words)

	eMedicine - Radical Neck Dissection : Article by Antonio Riera March, MD, FACS (Site not responding. Last check: 2007-10-14)
		The borders of the anterior cervical triangle are the inferior border of the mandible, the sternocleidomastoid muscle, and the midline of the neck.
		The platysma muscle is absent in the lower anterior midline of the neck and in the area posterior to the external jugular vein and greater auricular nerve.
		Retract the mylohyoid muscle anteriorly, exposing the submandibular ganglion, lingual nerve, and submandibular duct.
	www.emedicine.com /ent/topic502.htm (10800 words)

	eMedicine - Supraomohyoid Neck Dissection : Article by Antonio Riera March, MD, FACS (Site not responding. Last check: 2007-10-14)
		The platysma muscle is deficient in the lower anterior midline in the neck and posterior to the external jugular vein (EJV) and greater auricular nerve.
		Retract and elevate the mylohyoid muscle anteriorly, exposing the submandibular ganglion, lingual nerve, and submandibular duct.
		Retraction of the SCM muscle and the posterior belly of the digastric muscle is imperative in this maneuver.
	www.emedicine.com /ent/topic504.htm (10482 words)

	Neck Dissection: Classification, Indication, and Technique (Site not responding. Last check: 2007-10-14)
		The posterior boundary is the anterior border of the trapezius muscle, the anterior boundary is the posterior border of the sternocleidomastoid muscle, and the inferior boundary is the clavicle.
		The trapezius muscle’s anterior border is the posterior boundary of level V. Despite its large size, identification may be difficult secondary to its deceptively superficial position; it is not uncommon to mistake the levator scapulae for the trapezius placing the 11th nerve and the nerve to the levator at risk.
		The brachial plexus exits between the anterior and middle scalene muscles and extends inferiorly deep to the clavicle, under the posterior belly of the omohyoid muscle.
	www.otohns.net /default.asp?id=15851 (3705 words)

	Rahul Kumar Nath, MD ^ Long Thoracic Nerve, Winging Scapula Injury, Winging Scapula Surgery, Serratus Anterior Injury, ...
		The omohyoid muscle was resected to allow access to the scalene fat pad and to remove a potential compressive structure of the brachial plexus.
		Its lack of substance in relation to the bulk of the serratus anterior muscle teleologically predisposes the neuromuscular unit to dysfunction.
		As with the anterior scalenectomy, the middle scalene was resected sufficiently to decompress the long thoracic nerve as it traversed and exited the muscle.
	www.drnathwingingscapula.com /surgery/index.php (916 words)

	Untitled Document
		The cervical plexus is derived from the ventral rami of C1-C4.
		The palatoglossus muscle elevates the rear of the tongue.
		The posterior cricoarytenoid muscle is innervated by the external branch
	www.mc.edu /campus/academics/BIO/anatomy_exam_5b.htm (610 words)

	Classification of Neck Dissections
		Refers to the removal of all lymph node groups extending from the inferior border of the mandible superiorly to the clavicle inferiorly, from the lateral border of the sternohyoid muscle, hyoid bone, and contralateral anterior belly of the digastric muscle medially, to the anterior border of the trapezius muscle laterally.
		The posterior limit of the dissection is marked by the cutaneous branches of the cervical plexus and the posterior border of the sternocleidomastoid muscle.
		The inferior limit is the superior belly of the omohyoid muscle where it crosses the internal jugular vein.
	www.oralcancerfoundation.org /facts/neck_dissections.htm (367 words)

	Omohyoid muscle - Wikipedia, the free encyclopedia
		It arises from the upper border of the scapula, and occasionally from the superior transverse scapular ligament which crosses the scapular notch, its extent of attachment to the scapula varying from a few millimetres to 2.5 cm.
		It ends in the superior belly, which passes almost vertically upward, close to the lateral border of the Sternohyoideus, to be inserted into the lower border of the body of the hyoid bone, lateral to the insertion of the Sternohyoideus.
		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.
	en.wikipedia.org /wiki/Omohyoid_muscle (385 words)

	An unusual variation of the omohyoid muscle and review of literature.
		The omohyoid muscle is important in radical neck dissection, as it is a landmark for this operation.
		It was attached at its caudal end to the clavicle and coursed upward to the hyoid bone and a normal omohyoid muscle with its intermediate tendon was lateral to this muscle.
		According to its origin and insertion, the unfamiliar muscle was considered to be the cleido-hyoideus muscle.
	www.medscape.com /medline/abstract/16999212 (251 words)

	PT Central - Complete Muscle Tables for the Human Body
		Included is each muscle's origin, insertion, action, blood supply and innervation.
		Select here to print the Hosford Muscle Tables in a compact table form.
		Once in a region, you will be able to focus further on the muscles of that region.
	www.ptcentral.com /muscles (192 words)

	Carotid, Submandibular and Submental Triangles of the Neck
		the intermediate tendon of omohyoid is tethered to the clavicle by a fascial sling
		vascular smooth muscle of the brain, orbit, forehead, upper nasal cavity; arrector pili muscles of forehead and anterior scalp; sweat glands of the forehead; dilator pupillae m.
		SVE: intrinsic muscles of the larynx, pharynx (except stylopharyngeus), and palate (except tensor veli palatini); GVE: smooth muscle of the respiratory tree & gut (proximal to the left colic flexure), heart; secretomotor: mucous glands of the larynx, respiratory tree, pharynx and gut; secretomotor to digestive glands
	anatomy.uams.edu /anatomyhtml/anteriortriangle.html (3719 words)

	PHRENIC NERVE BLOCK (Site not responding. Last check: 2007-10-14)
		In the neck, this nerve is covered immediately posteriorly by the sternocleidomastoid muscle and the internal jugular and subclavian veins and is crossed by the transverse cervical and scapular vessels and the inferior belly of the omohyoid muscle.
		The lateral border of the clavicular head of the sternocleidomastoid muscle is located when the patient raises his/her head approximately 5 cm off the table.
		The middle and ring fingers of the operator's non-dominant hand are placed firmly on the border of the anterior scalene muscle, where subcutaneous infiltration is performed.
	www.ncpainmanagement.com /PhrenicNerveBlock.htm (505 words)

	[No title] (Site not responding. Last check: 2007-10-14)
		Its boundaries are the trapezius muscle, sternocleidomastoid muscle, and the omohyoid muscle.
		The floor of the occipital triangle is formed by several muscles that are attached to cervical vertebrae: the splenius capitis, levator scapulae, and medial scalene muscles.
		The boundaries of this triangle are inferior belly of omohyoid, sternocleidomastoid (clavicular head), and the clavicle.
	www.utmed.com /studynotes/gross/II-POSTERIOR-TRIANGLE-OF-NECK.doc (1745 words)

	Superficial dissection of the neck (Site not responding. Last check: 2007-10-14)
		Cut the sternal and clavicular attachements of the sternomastoid and carefully lift the muscle away from its fascia to demonstrate the nerve entering the deep surface of the muscle.
		Identify the boundaries of the muscular triangle: the hyoid bone, the superior belly of the omohyoid muscle.
		Deep to the sternohyoid muscle identify the sternothyroid muscle and the thyrohyoid muscle.
	www.umanitoba.ca /Medicine/Anatomy/disjv13.htm (1417 words)

	Desk Jockey Fitness - HYOID BONE
		Although the omohyoid muscle originates way out on the end of the scapula (shoulder blade) and eventually connects to the hyoid bone in the throut, it has an otherwise unique property: It also has a ligamentous sling that connects to the top of each of the lungs.
		If the hyoid muscles cannot be activated during exercise (when the neck needs to support the weight of the head) other hypertonic (short, strong and overused) muscles will be recruited to assist.
		Excessive recruitment of these other muscles, which includes the scalene (aka strap) muscles and the sterno-cleido-mastoid (aka SCM) muscles, is considered a faulty recruitment pattern and is a precursor to forward head position (FHP), trigger points in the neck muscles, reduced respiratory function and other seemingly unrelated problems.
	www.deskjockeyfitness.com /LearningCenter/Newsletters/QUIZ0502.html (480 words)

	Arch Otolaryngol Head Neck Surg -- Abstract: Tracheoesophageal Shunt Method With Omohyoid Muscle Loop for Voice ...
		Arch Otolaryngol Head Neck Surg -- Abstract: Tracheoesophageal Shunt Method With Omohyoid Muscle Loop for Voice Restoration, March 2003, Saito et al.
		Bilateral omohyoid muscles were preserved at the total laryngectomy
		omohyoid muscles were looped through each other beneath the
	archotol.ama-assn.org /cgi/content/abstract/129/3/321 (230 words)

	[No title]
		Cut through the superior belly of the omohyoid muscle near its attachment to the hyoid bone and reflect it inferiorly.
		Cut the thyrohyoid muscle and reflect it inferiorly.
		Be careful not to cut the facial artery that passes in a groove on the surface of the submandibular.
	www.med.uc.edu /haonline/head/labs/lab25/lab25_10.html (80 words)

	Effects of temperature on slow and fast inactivation of rat skeletal muscle Na+ channels -- Ruff 277 (5): C937 -- AJP - ...
		Muscle fibers were dissected and studied in a solution composed of 19 parts Tyrode solution (95% by volume) and 1 part rat
		Skeletal muscle membrane excitability is a complex interplay of Na
		A quantitative study of potassium channel kinetics in rat skeletal muscle from 1 to 37°C. Gen. Physiol.
	ajpcell.physiology.org /cgi/content/full/277/5/C937 (6239 words)

	Human Anatomy - Lab 25 Step 3 (Site not responding. Last check: 2007-10-14)
		The lateral, boundary is the superior belly of omohyoid muscle.
		The inferior, boundary is the lower anterior portion of the sternocleidomastoid muscle.
		These strap muscles are named for their attachments and are all innervated by branches of the ansa cervicalis which arises
	ect.downstate.edu /courseware/haonline/labs/l25/030100.htm (73 words)

	Hypoglossal nerve - Wikipedia, the free encyclopedia
		It spirals behind the vagus nerve and passes between the internal carotid artery and internal jugular vein lying on the carotid sheath.
		After passing deep to the posterior belly of the digastric muscle, it passes to the tongue.
		It supplies motor fibres to all of the muscles of the tongue, except the palatoglossus muscle which is innervated by the vagus nerve (X) and the accessory nerve (XI).
	en.wikipedia.org /wiki/Hypoglossal_nerve (484 words)

	Crossword by StudyStack (Site not responding. Last check: 2007-10-14)
		What muscle takes origin on the deep fascia of the neck and inserts on the skin of the neck and upper lip?
		Midline of the neck, Superior belly of the Omohyoid, and Sternum and clavicle
		It is where the carotid artery is not covered by muscle.
	www.studystack.com /Crossword.jsp?studyStackId=27091 (1253 words)

	Gross Anatomy Practical 2 - Study Guide (Site not responding. Last check: 2007-10-14)
		Anterior belly of the digastric muscle: [O: intermediate tendon of the digastric; I: digastric fossa]
		Zygomatic branch of the facial nerve: [innervates orbicularis occuli muscle]
		Temporal branch of the facial nerve: [innervates frontalis muscle]
	homepages.nyu.edu /~ll283/gp2.html (2823 words)

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