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<article xlink="http://www.w3.org/1999/xlink" dtd-version="1.0" article-type="healthcare" lang="en"><front><journal-meta><journal-id journal-id-type="publisher">IJCRR</journal-id><journal-id journal-id-type="nlm-ta">I Journ Cur Res Re</journal-id><journal-title-group><journal-title>International Journal of Current Research and Review</journal-title><abbrev-journal-title abbrev-type="pubmed">I Journ Cur Res Re</abbrev-journal-title></journal-title-group><issn pub-type="ppub">2231-2196</issn><issn pub-type="opub">0975-5241</issn><publisher><publisher-name>Radiance Research Academy</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">3385</article-id><article-id pub-id-type="doi"/><article-id pub-id-type="doi-url"> http://dx.doi.org/10.31782/IJCRR.2021.13423</article-id><article-categories><subj-group subj-group-type="heading"><subject>Healthcare</subject></subj-group></article-categories><title-group><article-title>Histomorphometry of Pretransverse Segment of Vertebral Artery and its Clinical Significance - A Cadaveric Study&#13;
</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>G</surname><given-names>Prabavathy</given-names></name></contrib><contrib contrib-type="author"><name><surname>T</surname><given-names>Sadeesh</given-names></name></contrib><contrib contrib-type="author"><name><surname>G</surname><given-names>Arthi</given-names></name></contrib><contrib contrib-type="author"><name><surname>J</surname><given-names>Anbalagan</given-names></name></contrib></contrib-group><pub-date pub-type="ppub"><day>16</day><month>02</month><year>2021</year></pub-date><volume>)</volume><issue/><fpage>65</fpage><lpage>69</lpage><permissions><copyright-statement>This article is copyright of Popeye Publishing, 2009</copyright-statement><copyright-year>2009</copyright-year><license license-type="open-access" href="http://creativecommons.org/licenses/by/4.0/"><license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0) Licence. You may share and adapt the material, but must give appropriate credit to the source, provide a link to the licence, and indicate if changes were made.</license-p></license></permissions><abstract><p>Introduction: Multiple variations in the origin of the vertebral artery have been reported in the literature. Objective: To study the variability in the origin and course of the vertebral arteries on both sides in both sexes and also to compare its microstructure. Methods: The vertebral artery was studied from 60 adult human cadavers on both sides. The origin and point of entry into foramen transversarium were studied and the dimensions of the artery were measured and tabulated. Results: In all 60 cadavers, the right vertebral artery (RVA) originated from the posterosuperior aspect of the first part of the subclavian artery. The left vertebral (LVA) originated from the first part of the left subclavian artery in 52 cadavers (87%). In 8 male cadavers (13%), the left vertebral artery originated directly from the arch of the aorta. The anomalous origin of LVA was longer than the right and the diameter was smaller than that of RVA. Amongst the 8 cadavers, one case appeared hypoplastic with wider close to the origin, constricted, and narrow in the middle part. In remaining cases of the normal origin of the vertebral artery, there was a significant increase in length and diameter of the vertebral artery in males compared to females on both sides. There is a predominantly increase in the length and diameter of the right vertebral artery when comparing both sexes. Conclusion: A thorough understanding of anomalous vertebral arteries is paramount when performing both diagnostic and interventional angiography.&#13;
</p></abstract><kwd-group><kwd> Vertebral artery</kwd><kwd> Aortic arch</kwd><kwd> Cervical vertebra</kwd><kwd> Variation</kwd><kwd> Development</kwd><kwd> Morphometry</kwd></kwd-group></article-meta></front></article>
