Sternocleidomastoid is supplied by all of the following aery except

Ans. d. ThyrocervicalSCM receives its blood supply from branches of the occipital and posterior auricular aeriesdeg (upper pa of muscle), the superior thyroid aerydeg (middle pa of muscle), and the suprascapular aerydeg (lower pa of muscle).The sternocleidomastoid muscle flap is used in reconstructive surgery of the neck. The exact knowledge of its blood supply helps to minimize the risk of flap necrosis after transposition.Vascular supply of Sternocleidomastoid MuscleSCM receives its blood supply from branches of the occipital and posterior auricular aeries (upper pa of muscle),the superior thyroid aery (middle pa of muscle), and the suprascapular aery (lower pa of muscle).A superiorly based flap can be raised on SCM to include a paddle of skin supplied by perforator vessels. This flap hasbeen used to reconstruct the lips, floor of mouth and inner aspect of the cheeks, however its use has been supersededby microvascular free transfer flaps or by conventional myocutaneous flaps such as the pectoralis major flap.Blood Supply of SternocleidomastoidUpper ThirdBranches of Occipital aerydeg and posterior auricular aeriesMiddle ThirdBranches of Superior thyroidal aer-ydeg (42%), external carotid aerydeg (23%) or branches of both (27%)Lower ThirdBranches of Suprascapular aerydeg