diff --git a/src/ontology/uberon-edit.obo b/src/ontology/uberon-edit.obo
index 08df42a418..8491f67abd 100644
--- a/src/ontology/uberon-edit.obo
+++ b/src/ontology/uberon-edit.obo
@@ -12219,15 +12219,14 @@ intersection_of: part_of UBERON:0035549 ! vasculature of integument
 
 [Term]
 id: UBERON:0001072
-name: posterior vena cava
+name: inferior vena cava
 def: "A vein that carries deoxygenated blood from the lower half of the body into the right atrium of the heart." [http://orcid.org/0000-0002-6601-2165, Wikipedia:Inferior_vena_cava]
 subset: pheno_slim
 subset: uberon_slim
 synonym: "caudal vena cava" RELATED [VHOG:0001194]
 synonym: "inferior caval vein" EXACT [http://orcid.org/0000-0002-6601-2165]
-synonym: "inferior vena cava" EXACT [Wikipedia:Venae_cavae]
 synonym: "postcava" RELATED []
-synonym: "posterior vena cava" EXACT [Wikipedia:Venae_cavae]
+synonym: "posterior vena cava" EXACT [PMID:21154280]
 synonym: "vena cava inferior" RELATED OMO:0003011 [BTO:0002682, Wikipedia:Inferior_vena_cava]
 xref: AAO:0011083
 xref: BTO:0002682
@@ -14096,7 +14095,7 @@ xref: UMLS:C0226758 {source="ncithesaurus:Common_Iliac_Vein"}
 xref: Wikipedia:Common_iliac_vein
 is_a: UBERON:0005610 {source="MA"} ! iliac vein
 relationship: drains UBERON:0010708 ! pectoral complex
-relationship: in_lateral_side_of UBERON:0001072 {source="FMA-abduced-lr"} ! posterior vena cava
+relationship: in_lateral_side_of UBERON:0001072 {source="FMA-abduced-lr"} ! inferior vena cava
 property_value: depiction "https://upload.wikimedia.org/wikipedia/commons/6/65/Iliac_veins.gif" xsd:anyURI
 property_value: taxon_notes "In human anatomy, the common iliac veins are formed by the external iliac veins and internal iliac veins and together, in the abdomen at the level of the fifth lumbar vertebrae, form the inferior vena cava. They drain blood from the pelvis and lower limbs. Both common iliac veins are accompanied along their course by common iliac arteries." xsd:string {source="Wikipedia:Common_iliac_vein"}
 
@@ -14126,7 +14125,7 @@ xref: Wikipedia:Renal_vein
 is_a: UBERON:0001638 ! vein
 intersection_of: UBERON:0001638 ! vein
 intersection_of: drains UBERON:0002113 ! kidney
-relationship: tributary_of UBERON:0001072 ! posterior vena cava
+relationship: tributary_of UBERON:0001072 ! inferior vena cava
 property_value: depiction "http://upload.wikimedia.org/wikipedia/commons/7/76/Gray1122.png" xsd:anyURI
 property_value: external_definition "The renal veins are veins that drain the kidney. They connect the kidney to the inferior vena cava. It is usually singular to each kidney, except in the condition 'multiple renal veins'. It also divides into 2 divisions upon entering the kidney: the anterior branch which receives blood from the anterior portion of the kidney and, the posterior branch which receives blood from the posterior portion. Often, each renal vein will have a branch that receives blood from the ureter. [WP,unvetted][Wikipedia:Renal_vein]." xsd:string {source="Wikipedia:Renal_vein"}
 property_value: external_ontology_notes "in EHDAA2, the renal vein is part of the kidney" xsd:string {external_ontology="EHDAA2"}
@@ -14194,7 +14193,7 @@ intersection_of: drains UBERON:0002107 ! liver
 disjoint_from: UBERON:0001639 ! hepatic portal vein
 relationship: develops_from UBERON:0005487 {gci_relation="part_of", gci_filler="NCBITaxon:40674", source="Wikipedia:Vitelline_vein"} ! vitelline vein
 relationship: part_of UBERON:0006877 ! vasculature of liver
-relationship: tributary_of UBERON:0001072 {source="FMA-abduced-lr"} ! posterior vena cava
+relationship: tributary_of UBERON:0001072 {source="FMA-abduced-lr"} ! inferior vena cava
 property_value: depiction "http://upload.wikimedia.org/wikipedia/commons/6/61/Gray1121.png" xsd:anyURI
 property_value: editor_note "todo - add developmental relationships for other taxa" xsd:string
 
@@ -14224,7 +14223,7 @@ xref: Wikipedia:Testicular_vein
 is_a: UBERON:0001638 ! vein
 intersection_of: UBERON:0001638 ! vein
 intersection_of: drains UBERON:0000473 ! testis
-relationship: connected_to UBERON:0001072 ! posterior vena cava
+relationship: connected_to UBERON:0001072 ! inferior vena cava
 relationship: connected_to UBERON:0001330 ! pampiniform plexus
 relationship: in_lateral_side_of UBERON:0000468 ! multicellular organism
 relationship: sexually_homologous_to UBERON:0001145 ! ovarian vein
@@ -102417,7 +102416,7 @@ xref: SCTID:277722006
 xref: UMLS:C0225848 {source="ncithesaurus:Eustachian_Valve"}
 xref: Wikipedia:Valve_of_inferior_vena_cava
 is_a: UBERON:0000946 ! cardiac valve
-relationship: part_of UBERON:0001072 ! posterior vena cava
+relationship: part_of UBERON:0001072 ! inferior vena cava
 property_value: depiction "http://upload.wikimedia.org/wikipedia/commons/6/6c/Gray493.png" xsd:anyURI
 property_value: editor_note "this class should be subdivided into the embryonic structure and the vestigial adult remnant, a small endocardialfold" xsd:string
 property_value: external_definition "Vestigial cardiac valve which is continuous with the valve of the coronary sinus and the crista terminalis." xsd:string {source="FMA:9240"}
@@ -189687,7 +189686,7 @@ xref: FMA:14342
 is_a: UBERON:0001145 {source="FMA"} ! ovarian vein
 intersection_of: UBERON:0001145 ! ovarian vein
 intersection_of: drains UBERON:0002118 ! right ovary
-relationship: tributary_of UBERON:0001072 {source="FMA"} ! posterior vena cava
+relationship: tributary_of UBERON:0001072 {source="FMA"} ! inferior vena cava
 
 [Term]
 id: UBERON:0039857