Uberon related term : accessory spinal nerve; CN-XI;
Uberon Homology note : Cranial nerves XI and XII evolved in the common ancestor to amniotes (non-amphibian
tetrapods) thus totalling twelve pairs.[well established][VHOG];
Uberon Taxon note : In mice, the spinal branch of this motor nerve innervates the trapezius and the sternocleidomastoid
muscles. The cranial branch joins the vagus nerve and innervates the same targets
as the vagus nerve;