Term: trunk axis
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: axis
Synonyms: midline
Definition: Organism subdivision running along the rostral-caudal axis of the early embryo.
Ontology: Anatomy Ontology [ZFA:0000092]