obsolete CiA true Interneurons of the spinal cord that arise from the V1 proliferation domain. The CiA neurons inhibit motoneurons, other ventral interneurons and also inhibit dorsal sensory neurons involved in sensory gating,. CiA have ipsilateral axonal projections in both motor and sensory regions of spinal cord. This class was sourced from an external ontology (teleost_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon circumferential ascending interneuron incorrectly generalized to teleosts/vertebrates. ZFA:0005247 UBERON:2005247