Posterior atlantoöccipital membrane
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| Posterior atlantoöccipital membrane | |
|---|---|
 | |
| Posterior atlantoöccipital membrane and atlantoaxial ligament. (Posterior atlantoöccipital membrane is topmost gray region at center.) | |
| Latin | membrana atlantooccipitalis posterior |
| Gray's | subject #74 296 |
| Dorlands/Elsevier | m_08/12521997 |
The posterior atlantoöccipital membrane (posterior atlantoöccipital ligament), broad but thin, is connected above, to the posterior margin of the foramen magnum; below, to the upper border of the posterior arch of the atlas.
On either side this membrane is defective below, over the groove for the vertebral artery, and forms with this groove an opening for the entrance of the artery and the exit of the suboccipital nerve.
The free border of the membrane, arching over the artery and nerve, is sometimes ossified.
The membrane is in relation, behind, with the Recti capitis posteriores minores and Obliqui capitis superiores; in front, with the dura mater of the vertebral canal, to which it is intimately adherent.
Additional images
 Median sagittal section through the occipital bone and first three cervical vertebræ. |
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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
