Question

Motor neurons of the frontal nerve to the frontal ganglion join the sensory neurons of the labral nerve to form the labrofrontal nerve arising from the tritocerebrum.

Answer 1

Three pairs of nerves originate from the supra-oesophageal ganglion—optic, antennary and labrofrontal nerves. The first two innervate the eyes and antennae but the third one divides into labral nerve supplying to the labrum and the frontal nerve which runs forwards to join the sympathetic nervous system.