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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 aortic arch has three main branches on its superior aspect. The first, and largest, branch of the arch of the aorta is the brachiocephalic trunk, which is to the right and slightly anterior to the other two branches and
The common carotid arteries are present on the left and right sides of the body. These arteries originate from different arteries but follow symmetrical courses. The right common carotid originates in the neck from the brachiocephalic trunk; the left from the aortic arch in the thorax.
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.
Ascending aorta: Left coronary artery: LAD: Right coronary artery: Circumflex a: Aortic arch: 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 ...
2.1 brachiocephalic artery. ... 2.3.3 thyrocervical trunk. 2.3.4 costocervical ... It is a portion of the aorta commencing at the upper part of the base of the left ...
The aortic nerve is an autonomic afferent nerve, [1] and runs from the peripheral baroreceptors and chemoreceptors found in the aortic arch and the bifurcation of the right brachiocephalic trunk. [2] [3] It joins the vagus nerve. [2] [3] This allows for impulses to reach the solitary tract of the brainstem. [2]
It is the primordial vascular channel from which the aortic arches arise (and eventually the dorsal aortae) and is homologous to the ventral aorta of gill-bearing vertebrates. The aortic sac eventually forms right and left horns, which subsequently give rise to the brachiocephalic trunk and the proximal segment of the arch of aorta ...