Longus colli muscle

Longus colli muscle

Infobox Muscle
Name = PAGENAME
Latin = musculus longus colli
GraySubject = 113
GrayPage = 394


Caption = The anterior vertebral muscles. (Longus colli labeled vertically at center left and center right.)


Caption2 =
Origin = Transverse processes of C-3 - C-6
Insertion = Inferior surface of the occipital bone
Blood =
Nerve = C2-C6
Action = Flexes the neck and head
Antagonist =
DorlandsPre = m_22
DorlandsSuf = 12549740
The Longus colli muscle is a muscle of the human body.

The Longus colli is situated on the anterior surface of the vertebral column, between the atlas and the third thoracic vertebra.

It is broad in the middle, narrow and pointed at either end, and consists of three portions, a superior oblique, an inferior oblique, and a vertical.

* The "superior oblique portion" arises from the anterior tubercles of the transverse processes of the third, fourth, and fifth cervical vertebræ and, ascending obliquely with a medial inclination, is inserted by a narrow tendon into the tubercle on the anterior arch of the atlas.

* The "inferior oblique portion", the smallest part of the muscle, arises from the front of the bodies of the first two or three thoracic vertebræ; and, ascending obliquely in a lateral direction, is inserted into the anterior tubercles of the transverse processes of the fifth and sixth cervical vertebræ.

* The "vertical portion" arises, below, from the front of the bodies of the upper three thoracic and lower three cervical vertebræ, and is inserted into the front of the bodies of the second, third, and fourth cervical vertebræ.

Clinical significance

It is commonly injured in rear end whiplash injuries, usually resulting from a car crash.

This muscle is in front of the spine and is thought by some scientists that it may cause some whiplash patients to have an unnatural lack of curvature in the patients' neck.

External links

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*
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* [http://www.ptcentral.com/muscles/musclehead.html#longus%20colli PTCentral]
* [http://www.spinalinjuryfoundation.org/101_new/longus.htm spinal injury database]


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