ciliospinal center ciliospinal center the ciliospinal center (in latin: centrum ciliospinale) is a structure which receives input from the pretectum, and has output to the superior cervical ganglion. ciliospinal centersympathetic connections of the ciliary and superior cervical ganglia. (ciliospinal center not labeled, but region is visible below superior cervical ganglion.)anatomical terminology it is located in the intermediolateral cell columns (imlcc) of the spinal cord between c8 and t2. it plays a role in the control of the iris dilator muscle. it is also known as "budge's center", or "centre". it is associated with a reflex identified by augustus volney waller and ludwig julius budge in 1852.