<prompt> Muller;s muscle is found inPharynxMiddle earEye lidTongue  <response>: Mullers muscle or involuntary pa of levator palpebrae superioris is supplied by sympathetic fibres from the superior cervical ganglion. Paralysis of mullers muscle leads to paial ptosis. This is a pa of horners syndrome. Ref BDC volume 3,Sixth edition pg 74 