Term Name:	area postrema
Synonyms:	AP, chemoreceptor trigger zone
Definition:	A small, rounded eminence on each side of the fourth ventricle, which receives nerve fibers from the solitary nucleus , spinal cord, and adjacent areas of the medulla. The area postrema lies outside the blood-brain barrier and its functions include acting as an emetic chemoreceptor.
Ontology:	Uberon Ontology [UBERON:0002162]