Introducing new science
The atlas is the first vertebra of the spinal column. The head rocks on top of this bone via the two pairs of facets that you see here. When the chin is tucked the head sits atop the anterior facets, when the head is tilted upward the posterior facets hold the weight of the head.
The right anterior facet is obviously scored on this bone. This erosion took place due to the fact that the head (occipital condyles) had been subluxated over time.
Craton's articles on atlanto-occipital dissection (1985)
About the author
See ContractSee also: FACETS AXIS SKULL O/A JOINTS TEXTBOOK ERRORS
(1) From GateWay Community College
Created by Dr. J. Crimando
SUPERIOR VIEW OF THE ATLAS (C1)
(NOTICE SINGULARITY OF SUPERIOR
FACET; THEY SHOULD LIST TWO
FACETS PER SIDE. PLEASE COMPARE.)
(2) From Clinical Imaging Diagnosis:
DAVID, atlas of human anatomy
Developed by J. C. Oberson MD.
ATLAS, SUPERIOR VIEW
Yes, I am fully aware that the three links directly above are no longer working. I do not know for sure that my linking to them is what caused for them to no longer be available. But I do know that it only took about two weeks after I did link to them for their site to disappear. I am hoping that they will be returning in the near future.
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This page was first created in the summer of 1999 and last revised on May 9, 2007.