the ventrolateral outflow ( vlo ) represents primitive ventral roots consisting of both the cytoplasmic and the cellular outflows : the former shows the axonal outgrowth from primitive somatomotor neurons , and the latter is represented by elongated cells derived from the glia limitans , extending along the axonal processes to form the schwann cell sheath around the proximal portion of the ventral root axons .
C0027882
neurons
C0004461
axons