Anatomy General fcd11786 Torticollis or Wryneck is due to A Sternocleidomastoid and trapezius B Sternocleidomastoid and Platysma C Trapezius and sternohyoid D Trapezius and omohyoid High-Yield Explanation It is due to spasm of the muscles supplied by spinal accessory nerve i.e. sternocleidomastoid and trapezius.