tongue morphogenesis (GO:0043587) results in morphogenesis of tongue (UBERON:0001723)
an annotation of gene X to cell morphogenesis with results_in_morphogenesis_of CL:0000540 (neuron) means that at the end of the process an input neuron has attained its shape.
The relationship that links an entity with the process that results in the formation and shaping of that entity over time from an immature to a mature state.