<prompt> Injury to cervical sympathetic trunk produces Horners syndrome, that includes all, exceptAnhydrosisEnopthalmosPtosisMydriasis  <response>: Injury to cervical Symphathetic trunk which are formed by T1 to T4 fibres of spinal cord produces Horners syndrome. It is characterized by ptosis dropping of the upper eyelid miosis constriction of pupil anhydrosis loss of sweating enophthalmos retraction of eye ball 