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The brachiocephalic artery, brachiocephalic trunk, or innominate artery is an artery of the mediastinum that supplies blood to the right arm, head, and neck. [1] [2] It is the first branch of the aortic arch. [3] Soon after it emerges, the brachiocephalic artery divides into the right common carotid artery and the right subclavian artery. [4]
The left common carotid varies in its origin more than the right. In the majority of abnormal cases it arises with the brachiocephalic trunk; if that artery is absent, the two carotids arise usually by a single trunk. It is rarely joined with the left subclavian artery, except in cases of transposition of the aortic arch.
Brachiocephalic trunk; Left common carotid artery; Left subclavian artery; Continues as descending aorta, thoracic part: Vein: Combination of superior and inferior vena cava: Supplies: From its branches, the upper body, arms, head and neck. As a part of the aorta, the entire body, with exception of the respiratory zone of the lung and the heart ...
Brachiocephalic a: R common carotid a: R subclavian a: L common carotid a: Internal carotid a: External carotid a: L subclavian a: Vertebral artery: Int. thoracic a: Thyrocervical trunk: Costocervical trunk: Dorsal scapular artery (mostly) Descending aorta : Bronchial as: Abdominal aorta: Celiac a: L gastric a: Common hepatic a: Splenic a: SMA ...
The brachiocephalic artery or trunk is the first and largest artery that branches to form the right common carotid artery and the right subclavian artery. This artery provides blood to the right upper chest, right arm, neck, and head, through a branch called right vertebral artery .
The left subclavian is occasionally joined at its origin with the left common carotid artery, forming a left brachiocephalic trunk. The left subclavian artery is more deeply placed than the right in the first part of its course, and, as a rule, does not reach quite as high a level in the neck.
2.1 brachiocephalic artery. 2.2 left common carotid artery ... 2.3.3 thyrocervical trunk. 2.3.4 costocervical trunk. 2.3.5 Axillary artery.
The aortic arch has three major branches: from proximal to distal, they are the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery. The brachiocephalic trunk supplies the right side of the head and neck as well as the right arm and chest wall, while the latter two together supply the left side of the same regions.