Right Subclavian Origin — FRCA Primary MCQ

Instant feedback + full explanation. One question, done properly.

EasyAnatomyRight Subclavian OriginFRCA Primary

Regarding the anatomy of the subclavian artery it arises from the aortic arch on the left and from which vessel on the right?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: C — Brachiocephalic trunk (innominate artery)

The left subclavian artery arises directly from the aortic arch (third branch). The right subclavian artery arises from the brachiocephalic trunk (innominate artery) which is the first branch of the aortic arch. The brachiocephalic trunk divides into the right subclavian and right common carotid arteries behind the right sternoclavicular joint.

Reference: RCoA 2021 Primary FRCA Curriculum