Term: post-vent region leukocyte
Name: post-vent region
Synonyms: tail
Definition: Organism subdivision which is the part of the body posterior to the vent which includes the anal and caudal fins.
Ontology: Anatomy Ontology [ZFA:0001117]

Name: leukocyte
Synonyms: immune cell, leucocyte, white blood cell
Definition: An achromatic cell of the myeloid or lymphoid lineages, found in blood or other tissue.
Ontology: Anatomy Ontology [ZFA:0009309]