Type of Article:  Original Research

Volume 6; Issue 3.2 (August 2018)

Page No.: 5504-5507

DOI: https://dx.doi.org/10.16965/ijar.2018.257


Vrinda Hari Ankolekar 1, Anne D Souza 2, Mamatha Hosapatna *3, Amoldeep Singh 4.

1,2,*3 Associate Professor, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India.

4 Tutor, Dr. Y.S. Parmar Govt Medical College, Himachal Pradesh, India.

Corresponding Author’s Mailing Address: Dr. Mamatha Hosapatna, Associate Professor,  Department of Anatomy, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India. E-Mail: Mamatha.h@manipal.edu


Background: The common carotid artery (CCA) divides at the level of superior border of thyroid cartilage. The external carotid artery (ECA) is one of the terminal branches of CCA. ECA gives three anterior branches, Superior thyroid (STA), Lingual (LA) and Facial arteries (FA). Therefore the present study was carried out to describe the level of bifurcation of CCA, its relations with anatomical landmarks and the morphometry of anterior branches of ECA in relation to bifurcation of CCA.

Methods: The present study was carried on 30 sagittal head and neck sections. The level of bifurcation of CCA was noted. The distances from CCA bifurcation to the superior border of thyroid cartilage (SBTC), angle of mandible, ear lobule were measured. The ddistances of STA, LA & FA from CCA bifurcation were also measured.

Results: In 16 (53.33%) cases the bifurcation of CCA was observed at the level of SBTC, 2 (6.67%)

It was between SBTC and hyoid bone, in 5 (16.67%) below SBTC and in 6 (20%) at the level of hyoid bone. The mean distances from the bifurcation of CCA to the SBTC was 24 ± 0.95mm, to  the angle of the mandible was 31 ± 0.86mm and to the ear lobule was 54.8 ± 0.96mm. The mean distances of STA, LA and FA from CCA bifurcation were 7.2 ± 0.2, 12 ± 0.45 and 17.6 ± 0.48 cm respectively.

Conclusion: The anatomical study of CCA is useful for angiographies, thyroid and head and neck surgeries. In case of common trunks, stenosis or occlusion may cause severe ischemic consequences and prone to atherosclerosis.

Key words: Common Carotid Artery, External Carotid Artery, Superior Thyroid Artery, Lingual Artery, Bifurcation.


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Cite this article: Vrinda Hari Ankolekar, Anne D Souza, Mamatha Hosapatna, Amoldeep Singh. LEVEL OF BIFURCATION OF COMMON CAROTID ARTERY AND MORPHOMETRY OF ANTERIOR BRANCHES OF EXTERNAL CAROTID ARTERY: A DESCRIPTIVE STUDY. Int J Anat Res 2018;6(3.2):5504-5507. DOI: 10.16965/ijar.2018.257