Term Name:	retroambiguus nucleus
Synonyms:	nucleus retroambigualis, retroambiguus nucleus
Definition:	The term retroambiguus nucleus refers to a group of neurons in the medulla at the caudal end of the nucleus ambiguus, from which the cranial part of the accessory nerve originates ( Crosby-1962 ).
Ontology:	Uberon Ontology [UBERON:0016848]