Superior vena cava
E431119
The superior vena cava is a large vein that returns deoxygenated blood from the upper body to the right atrium of the heart.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Superior vena cava canonical | 1 |
| superior vena cava | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4332169 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Superior vena cava Context triple: [Heart, connectedTo, Superior vena cava]
-
A.
Vena Canal
Vena Canal is a principal waterway running through the historic fishing town of Chioggia in Italy’s Venetian lagoon.
-
B.
Central Artery
The Central Artery is a major elevated and now mostly underground highway corridor running through downtown Boston, historically notorious for congestion and central to the "Big Dig" redevelopment project.
-
C.
Clyve
Clyve is a given name, typically a modern or stylistic variant of the name Clive.
-
D.
Venafrum
Venafrum was an ancient town in south-central Italy, noted in Roman times for its fertile territory and high-quality olive oil.
-
E.
Takic branch
The Takic branch is a subgroup of the Uto-Aztecan language family comprising several closely related Indigenous languages of Southern California.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Superior vena cava Target entity description: The superior vena cava is a large vein that returns deoxygenated blood from the upper body to the right atrium of the heart.
-
A.
Vena Canal
Vena Canal is a principal waterway running through the historic fishing town of Chioggia in Italy’s Venetian lagoon.
-
B.
Central Artery
The Central Artery is a major elevated and now mostly underground highway corridor running through downtown Boston, historically notorious for congestion and central to the "Big Dig" redevelopment project.
-
C.
Clyve
Clyve is a given name, typically a modern or stylistic variant of the name Clive.
-
D.
Venafrum
Venafrum was an ancient town in south-central Italy, noted in Roman times for its fertile territory and high-quality olive oil.
-
E.
Takic branch
The Takic branch is a subgroup of the Uto-Aztecan language family comprising several closely related Indigenous languages of Southern California.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
great vessel of the heart
ⓘ
large vein ⓘ systemic vein ⓘ vein ⓘ |
| anteriorTo | right pulmonary artery ⓘ |
| carries | deoxygenated blood ⓘ |
| clinicalSignificance |
common site for central venous catheter placement
ⓘ
may be compressed by mediastinal tumors ⓘ may be obstructed by thrombosis ⓘ site of superior vena cava syndrome ⓘ |
| connects | brachiocephalic veins to right atrium ⓘ |
| doesNotContain | valves at atrial junction ⓘ |
| drains | venous blood under low pressure ⓘ |
| drainsInto | right atrium of heart ⓘ |
| drainsRegion | supradiaphragmatic body ⓘ |
| embryologicalOrigin |
right anterior cardinal vein
ⓘ
linked to:
right brachiocephalic vein
right common cardinal vein ⓘ |
| formedBy |
left brachiocephalic vein
ⓘ
right brachiocephalic vein ⓘ |
| hasAbbreviation | SVC ⓘ |
| hasSegment |
extrapericardial segment
ⓘ
intrapericardial segment ⓘ |
| hasVariant | persistent left superior vena cava ⓘ |
| lateralTo | ascending aorta ⓘ |
| latinName | vena cava superior ⓘ |
| location |
middle mediastinum
ⓘ
superior mediastinum ⓘ |
| medialTo | right lung ⓘ |
| partOf |
systemic circulation
ⓘ
thorax ⓘ venous system ⓘ |
| receivesBloodFrom | azygos vein ⓘ |
| relatedTo |
pericardium
ⓘ
phrenic nerve ⓘ
linked to:
Phrenic nerves
vagus nerve ⓘ
linked to:
Vagus nerves
|
| returnsBloodFrom |
head
ⓘ
neck ⓘ upper body ⓘ upper limbs ⓘ upper thorax ⓘ |
| supplies | right atrium with venous return from upper body ⓘ |
| wallContains | smooth muscle ⓘ |
| wallLayer |
tunica adventitia
ⓘ
tunica intima ⓘ tunica media ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Superior vena cava Description of subject: The superior vena cava is a large vein that returns deoxygenated blood from the upper body to the right atrium of the heart.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Superior vena cava