Anatomy and Cell Biology 2221 Lecture Notes - Lecture 9: Brachiocephalic Artery, Great Vessels, Myocardial Infarction
3 Feb 2017
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Area in the middle between the 2 lungs. Anterior: thymus specialized organ of the immune system that is important during development and puberty but degenerates as you age. Posterior: behind heart and in front of vertebrae. Superior: above sternal angle up to 1st rib (from t1 posteriorly to first rib to manubrium) Above sternal angle up to 1st rib. From t1 posteriorly to 1st rib to manubrium (defines thoracic inlet) Great vessels: superior vena cava, brachiocephalic, branches off arch of aorta, pulmonary trunk. Left side: travels between the left common carotid and subclavian arteries, continues anterior to the arch of the aorta and then loops around and ascends as the left recurrent laryngeal n. Right side: travels between right brachiocephalic artery and vein and continues posterior to the svc. Vagus n. loops at subclavian a. and right recurrent laryngeal n. is given off coming back up to vocal cords.
