From the brachiocephalic trunk, which arteries branch off?

From the brachiocephalic trunk, which arteries branch off?

• A. Left subclavian and left common carotid
• B. Right subclavian and right common carotid
• C. Right coronary and left coronary
• D. Pulmonary artery and aorta

Answer: (B)

The brachiocephalic trunk on the right side gives off two arteries: the right common carotid artery and the right subclavian artery. The left side has its own direct branches from the aortic arch—the left common carotid and left subclavian. The coronary arteries arise from the ascending aorta, not from the brachiocephalic trunk, and the pulmonary artery comes from the heart’s right ventricle while the aorta is the main outflow from the left ventricle. So, the vessels that branch from the brachiocephalic trunk are the right common carotid and the right subclavian.

The brachiocephalic trunk on the right side gives off two arteries: the right common carotid artery and the right subclavian artery. The left side has its own direct branches from the aortic arch—the left common carotid and left subclavian. The coronary arteries arise from the ascending aorta, not from the brachiocephalic trunk, and the pulmonary artery comes from the heart’s right ventricle while the aorta is the main outflow from the left ventricle. So, the vessels that branch from the brachiocephalic trunk are the right common carotid and the right subclavian.