You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Not a direct branch of aoa and explain in detail?
ARCH OF AOA BRANCHES Arch of aoa is the continuation of the ascending aoa.It is situated in the superior mediastinum behind the lower half of the manubrium sterni. BRANCHES 1.Brachiocephalic aery which divides into the right common carotid and right subclan aeries. 2.Left common carotid aery 3.Left suclan aery REF.BDC VOL.1,FIFTH EDITION