Type of Article: Original Research
Year: 2016 | Volume 4 | Issue 2 | Page No. 2258-2265
Date of Publication: 30-04-2016
VARIATIONS IN THE BRANCHING PATTERN OF AXILARY ARTERY
M. Venkateshwara Reddy *1, K. Sumangala Devi 2, Praveen Kumar P 3, S. Savitha 4.
*1 Associate Professor, Department of Anatomy, SVS Medical College, Mahaboobnagar, Telangana, India.
2 Professor, Department of Anatomy, SVS Medical College, Mahaboobnagar, Telangana, India.
3 Assistant Professor, Department of Anatomy, SVS Medical College, Mahaboobnagar, Telangana, India.
4 Assistant Professor, Department of Anatomy, SVS Medical College, Mahaboobnagar, Telangana, India.
Address: Dr. M. Venkateshwara Reddy, MD., Associate Professor, Department of Anatomy, SVS Medical College, Mahaboobnagar, Telangana, India. Mob. No.: +919059644484
Introduction: Axillary artery, a continuation of the subclavian-artery, begins at the outer border of the first rib, and ends nominally at the inferior border of teres major where it becomes the brachial artery. Its direction varies with the position of the limb; it is almost straight when the arm is raised at right angles, concave upwards when the arm is elevated above this and convex upwards and laterally when the arm is by the side. Variations in the course and branching pattern of the axillary arteries are not uncommon, hence we observed for the course and branching patterns of Axillary artery.
Materials and Methods: present study is the detailed analysis of the source, site and level of origin of the axillary artery branches and their variations after dissecting 20 upper limbs in 10 cadavers out of which 8 are male and 2 are female with age varying from 35-60 years.
Results: In the present study anomalous position of Axillary artery branches were noted in 35% dissections. Superior thoracic artery arose common with the thoraco acromial artery in 10% dissections. Lateral thoracic artery arose common with superior thoracic artery in 5% dissections; common with thoraco-acromial artery in 20% dissections, from the second part of axillary artery, and common with thoraco-acromial artery in 10% dissections, from the first part of Axillary artery. Branches of thoraco-acromial artery arose individually from the 2nd part of Axillary artery in 10% dissections. Anterior circumflex humoral artery arose common with the posterior circumflex humoral artery in 20% dissections. Posterior circumflex humoral artery and sub-scapular artery arose from the common trunk in 5% dissections, and common with the anterior circumflex humoral artery in 20% dissections. Sub-scapular artery arose from the second part of Axillary artery in 5% dissections.
Conclusion: Knowledge about axillary artery variations is important for the clinicians during surgical or other interventions over shoulder region.
KEY WORDS: Axillary Artery, Superior Thoracic Artery, Thoraco Acromial Artery, Circumflex Humeral Arteries, Variations.
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M. Venkateshwara Reddy, K. Sumangala Devi, Praveen Kumar P, S. Savitha. VARIATIONS IN THE BRANCHING PATTERN OF AXILARY ARTERY. Int J Anat Res 2016;4(2):2258-2265. DOI: 10.16965/ijar.2016.191