Related Experiment Video
Updated: Aug 13, 2025

A New Hybrid Quantitative Evaluation Model for Axillary Junctional Hemorrhage in Swine
Published on: December 6, 2024
Rare high branching pattern from the first part of the right axillary artery
Ahmad O Odeh1, Shivika Ahuja1, Sania V Karir1
1Saint Louis University School of Medicine, Saint Louis, MO, United States.
Abstract:
A 77-year-old female cadaver was observed to have a rare branching pattern of the right axillary artery (AA). The first part of the AA typically gives off only a superior thoracic artery (STA) but was observed to give off three branches in the case: a lateral thoracic artery (LTA), a thoracoacromial trunk, and a large common trunk (CT). The LTA travelled to provide a variant STA to the 1st and 2nd intercostal spaces. The CT provided an accessory LTA and accessory thoracodorsal artery before bifurcating into a subscapular artery (SA) and posterior humeral circumflex artery. As expected, the SA further divided into the circumflex scapular artery and thoracodorsal artery. A pectoral artery and the anterior humeral circumflex artery originated directly from the second and third parts of the AA, respectively. Knowledge of AA branching variations is of great clinical significance to anatomists, radiologists, and surgeons due to the high rate of injury to this artery.
Related Concept Videos
Arteries of the Upper Limbs
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Veins of Upper Limbs
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
Thoracic Aorta
Abdominal Aorta
The celiac trunk, a singular artery, divides into the left gastric artery, which...
The Aorta
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...

