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 lies posterior to the subclan aery and thus need not be divided to expose the aery. Whereas, sternocleidomastoid & scalenus anterior lie anteriorly and omohyoid lies superiorly and thus are cut during exposure of the subclan aery.