Exposure of left subclan aery by supraclavicular approach does not require cutting of: (A) Sternocleidomastoid, (B) Scalenus anterior, (C) Scalenus medius, (D) Omohyoid
Answer is C. Scalenus medius is located posterior to the subclan aery. Hence there is no need to cut this to expose the subclan aery. Ref - Bdc 6th e Vol 3 pg165,166 , pubmed.com