Rectus Capitis Posterior Major
Original Editor - Evan Thomas
Lead Editors - Evan Thomas, Vidya Acharya, Tarina van der Stockt, WikiSysop and Kim Jackson
Description[edit | edit source]
The fibers of this muscle skips C1 as it runs from C2 to the occiput, lateral to the rectus capitis posterior minor. It is also known as the Greater Posterior Rectus Capitis, and comprises the posterosuperior boarder of the suboccipital triangle.[1]
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Origin[edit | edit source]
Tip of the spinous process of the axis (C2).[2]
Insertion[edit | edit source]
Lateral aspect of the inferior nuchal line of the occiput,[2] as well as to the bone inferior to this line.[1]
Nerve Supply[edit | edit source]
Suboccipital nerve or dorsal ramus of cervical spinal nerve (C1).[2]
Blood Supply[edit | edit source]
Vertebral artery and the deep descending branch of the occipital artery.[2]
Action[edit | edit source]
Ipsilateral rotation of the atlantoaxial joint.[3]
Function[edit | edit source]
Likely a postural muscle that monitors the position of the head.[2]
Trigger Point Referral Pattern[1][edit | edit source]
References[edit | edit source]
- ↑ 1.0 1.1 1.2 Travell JG, Simons DG, Simons LS (1998). Travell and Simons' Myofascial Pain and Dysfunction: The Trigger Point Manual, Volume 1: Upper Half of Body (2nd ed). Baltimore, MD: Williams & Wilkins.
- ↑ 2.0 2.1 2.2 2.3 2.4 http://www.anatomyexpert.com/structure_detail/5210/
- ↑ Agur AMR, Dalley AF (2012). Grant's Atlas of Anatomy (13th ed). Philadelphia, PA: Lippincott Williams & Wilkins.
