Rectus capitis posterior major muscle
- Rectus capitis posterior major muscle
Muscle infobox
Name = Rectus capitis posterior major muscle
Latin = musculus rectus capitis posterior major
GraySubject = 116
GrayPage = 401
Caption = Deep muscles of the back. (Rect. post. major visible at upper left.)
Origin = Spinous process of the axis (C2) | Insertion = Inferior nucheal line of the occipital bone
Action =
Blood =
Nerve = Dorsal ramus of C1 (suboccipital nerve)
MeshName =
MeshNumber =
DorlandsPre = m_22
DorlandsSuf = 12550460
The Rectus capitis posterior major (Rectus capitis posticus major) arises by a pointed tendon from the spinous process of the axis, and, becoming broader as it ascends, is inserted into the lateral part of the inferior nuchal line of the occipital bone and the surface of the bone immediately below the line.
As the muscles of the two sides pass upward and lateralward, they leave between them a triangular space, in which the Recti capitis posteriores minores are seen.
It's main actions are to extend and rotate the atlanto-occipital joint.
ee also
* atlanto-occipital joint
* Rectus capitis lateralis
* Rectus capitis posterior minor muscle
* Rectus capitis anterior muscle
=Additional
External links
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* [http://www.ptcentral.com/muscles/musclehead.html#rectus%20capitis%20posterior%20major PTCentral]
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Wikimedia Foundation.
2010.
Look at other dictionaries:
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