Term: trunk posterior cardinal vein
Name: trunk
Synonyms:
Definition: Organism subdivision which is the part of the body posterior to the head and anterior to the post-vent region.
Ontology: Anatomy Ontology [ZFA:0001115]

Name: posterior cardinal vein
Synonyms: axial vein, caudal cardinal veins, PCV, postcardinal vein
Definition: Continuation of the caudal vein cranial to the anal pore. The cardinal vein splits into a pair of vessels in the cranial trunk, just caudal to the radix of the aorta. The posterior cardinals each empty into the common cardinal vein.
Ontology: Anatomy Ontology [ZFA:0000477]