in_lateral_side_of extends_fibers_into head neuron projection bundle brain cranial neuron projection bundle Any of the cranial nerves, or their central nervous system analogs (the optic tract, the epiphyseal tract). These analogs are not true nerves, and are instead evaginated sensory afferents emanating from the brain UBERON:0034713 cranial nerve fiber bundle cranial nerve fiber tract cranial nerve or tract neuron projection bundle from brain uberon