<prompt> Loss of lacrimation occurs due to injury ofNasocilliary nerveGreater petrosal nerveAnterior ethmoidal nerveSupraorbital nerve  <response>: Parasympathetic secretomotor nerve fibres destined for the lacrimal gland arise from the lacrimal nucleus of the facial nerve. They travel via the great petrosal nerve to reach the lacrimal gland. Consequently injuries of the greater petrosal nerve can cause loss of lacrimation. 