Term: Kupffer's vesicle posterior region
Name: Kupffer's vesicle
Synonyms: ciliated organ of asymmetry
Definition: Small but distinctive epithelial sac containing fluid, located midventrally posterior to the yolk cell or its extension, and transiently present during most of the segmentation period. Kupffer's vesicle has been compared to the mouse embryonic node.
Ontology: Anatomy Ontology [ZFA:0000001]

Name: posterior region
Synonyms:
Definition: Anatomical region posteriorly located on the body or body part.
Ontology: Spatial Ontology [BSPO:0000072]