The six VC motoneurons are organized along the ventral midline, and normally have a bipolar appearance, with VC1, 2, 3 and 6 extending process anterior/posterior, while VC4 and 5 are rotated ~90 degrees to send process out left and right. Below, are examples of the phenotypes seen in the VC4 and VC5 neurons in the vang-1, prkl-1 and dsh-1 mutants, including extra neurites (tripolar) and a reversion to a more VC1-like bipolar appearance.