Home|Journals|Articles by Year Follow on Twitter| Subscribe to List

Directory for Medical Articles

Open Access

Original Research

Natl J Med Res. 2011; 1(2): 51-53


Ojaswini Malukar, Vipul.P.Prajapati, S.K.Nagar.

Atlas is the first cervical vertebra. It articulates with the occipital bone above and the axis vertebra below. It plays an important role in movement of the skull and the neck. A rare variation of the atlas vertebra is found where the posterior arch of the atlas had one accessory foramen just behind each lateral mass. In the atlas vertebra, this retroarticular canal or the lateral bridge are examples of bony outgrowths which may cause external pressure on the vertebral artery as it passes from the foramen transversarium of the vertebra to the foramen magnum of the skull. The knowledge of this variation may be of importance to orthopedic surgeons, neurosurgeons, radiologists and anthropologists. Of the 80 atlas vertebrae observed 17.5 % showed presence of retro transverse groove or canal.

Key words: Arcuate foramen, Atlas vertebra, Ponticulus posticus, Vertebral artery

Full-text options

Full-text Article

American Journal of Research in Medical Sciences


BiblioMed Home
Follow ScopeMed on Twitter
Author Tools
eJPort Journal Hosting
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
ScopeMed is a Database Service for Scientific Publications. Copyright ScopeMed Information Services.