Which of the following is NOT a branch of the aortic arch?

The right renal artery is indeed NOT a branch of the aortic arch. Instead, it arises directly from the abdominal aorta, which is located below the diaphragm and supplies blood to the right kidney. Understanding the anatomy of the aortic arch is crucial, as it branches into major arteries that supply the head, neck, and upper limbs.

The innominate artery, also known as the brachiocephalic artery, is the first major branch of the aortic arch, dividing into the right common carotid and right subclavian arteries. The left common carotid artery branches directly from the aortic arch as well, providing blood to the left side of the head and neck. Similarly, the left subclavian artery, which supplies the left arm with blood, is another direct branch from the aortic arch. Recognizing the specific roles and connections of these arteries helps clarify their anatomical relationships and contributions to the circulatory system.