<prompt> Rigor mortis first sets inFace musclesMuscles of eyelidNeck musclesSmall muscles of hand  <response>: B Muscles of eyelid Rigor mortis first appears in the involuntary muscle - Heart first affected. In the voluntary muscle - Eyelid muscles appears first. It first appearance in involuntary and then in voluntary muscles. It is not dependent on the nerve supply as it also develops in the paralysed limbs. Rigor mortis is tested by: Attempting to lift the eyelids. Depressing the jaw. Gently bending the neck and various joints of the body. Sequence: Eyelid - face neck and trunk - upper extremity - legs - small muscles of fingers toes. In India rigor mortis commences in 2- 3 hours, the time since death would be within about 12-24 hours. 