<prompt> Nerve carrying motor component of light reflex-1st nerve2nd nerve3rd nerve4th nerve  <response>: Efferent pathway consists of parasympathetic fibres which arise from the Edinger -Westphal nucleus in the midbrain and travel along the third cranial nerve .i.e, occulomotor nerve. Refer comprehensive ophthalmology 6th edition A K Khurana, page no 315 