Subclavian artery
The subclavian arteries are paired major arteries of the upper thorax, below the clavicle. They receive blood from the aortic arch, with some branches supplying the head and thorax. The left sub Clavian artery supplies blood to the left arm, and the right sub Clava artery supplies the right arm.
About Subclavian artery in brief
In human anatomy, the subclavian arteries are paired major arteries of the upper thorax, below the clavicle. They receive blood from the aortic arch, with some branches supplying the head and thorax. The left sub Clavian artery supplies blood to the left arm, and the right sub Clava artery supplies the right arm. On the left side of the body, the Sub Clava comes directly off the Aorta, while on the right side it arises from the relatively short brachiocephalic artery when it bifurcates into the subClavian and right common carotid artery. The usual branches of the sub clavian are vertebral artery, internal thoracic artery, the thyrocervical trunk and the dorsal scapular artery, which may branch off the transverse cervical artery. It is crossed by the internal jugular vein and the vertebral vein, by the vagus nerve and the cardiac branches ofthe vagus and sympathetic, and by the subCLavian loop of the sympathetic trunk which forms a ring around the vessel.
Below and behind the artery is the pleura, which separates it from the apex of the lung. The right recurrent nerve winds around the lower and back part of the vessel, and it is in relation, in front, with thevagus, cardiac, and phrenic nerves, which lie parallel with it. The latter lie to its right side, ultimately arching over the vessel to join the angle of union between the sub Clavellian artery and the jugular veins of the left laryngeal duct. The second and third parts of the two arteries are practically alike, but the first portions of the vessels require separate descriptions. The first part of. the left subclavaian artery arises from the arch of the aortsa, behind the left common carOTid, and at the level of the fourth thoracIC vertebra. It ascends in the superior mediastinal cavity to the root of the neck and then arches lateralward to the medial border of the Scalenus anterior.
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This page is based on the article Subclavian artery published in Wikipedia (as of Dec. 06, 2020) and was automatically summarized using artificial intelligence.
