Sternohyoid muscle

Sternohyoid muscle

Muscle infobox
Name = Sternohyoid muscle
Latin = musculus sternohyoideus
GraySubject = 112
GrayPage = 393


Caption = Muscles of neck. Sternohyoideus labeled at middle, just to the right of thyroid cartilage.


Caption2 = Muscles of the neck. Lateral view. Sternohyoid muscle labeled
Origin = manubrium of sternum
Insertion = hyoid bone
Action = depresses hyoid
Blood =
Nerve = ansa cervicalis
DorlandsPre = m_22
DorlandsSuf = 12550951
The sternohyoid muscle is a thin, narrow muscle attaching the hyoid bone to the sternum, one of the paired strap muscles of the infrahyoid muscles serving to depress the hyoid bone. It is innervated by the ansa cervicalis.

The muscle arises from the posterior border of the medial end of the clavicle, the posterior sternoclavicular ligament, and the upper and posterior part of the manubrium sterni.

Passing upward and medially, it is inserted by short tendinous fibers into the lower border of the body of the hyoid bone.

Variations

Doubling; accessory slips (Cleidohyoideus); absence.

It sometimes presents, immediately above its origin, a transverse tendinous inscription.


=Additional

External links

*
* - "Nerves and Vessels of the Carotid triangle"
*
* [http://www.ptcentral.com/muscles/musclehead.html#sternohyoid PTCentral]


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Look at other dictionaries:

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  • sternohyoid — I. “+ adjective Etymology: New Latin sternohyoides, from stern + hyoides hyoid : of or relating to the sternum and the hyoid bone or cartilage; specifically : constituting a muscle on each side of the midline extending from the medial end of the… …   Useful english dictionary

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  • sternohyoid — ster·no·hy·oid .stər nō hī .ȯid n an infrahyoid muscle on each side of the midline that arises from the medial end of the clavicle and the first segment of the sternum, inserts into the body of the hyoid bone, and acts to depress the hyoid bone… …   Medical dictionary

  • sternohyoid — n. a muscle in the neck, arising from the sternum and inserted into the hyoid bone. It depresses the hyoid bone …   The new mediacal dictionary

  • cleidohyoid muscle — a slip of muscle sometimes seen augmenting the sternohyoid muscle, extending from the hyoid bone to the clavicle …   Medical dictionary

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