bursa of Fabricius in birds
E902893
The bursa of Fabricius in birds is a specialized lymphoid organ near the cloaca that plays a crucial role in the development and maturation of B lymphocytes in avian species.
All labels observed (1)
| Label | Occurrences |
|---|---|
| bursa of Fabricius in birds canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11074497 — 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: bursa of Fabricius in birds Context triple: [B lymphocytes, nameDerivedFrom, bursa of Fabricius in birds]
-
A.
Turdus iliacus
Turdus iliacus, commonly known as the redwing, is a small migratory thrush found across Europe and Asia, recognizable by its reddish flanks and underwing and a bold pale eyebrow stripe.
-
B.
Vogel
Vogel is a German-origin surname borne by numerous individuals, including figures in sports, arts, science, and public life.
-
C.
Vogel
Vogel is a prominent mountain and ski resort in the Julian Alps of Slovenia, overlooking Lake Bohinj and popular for hiking, skiing, and panoramic views.
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D.
Erpornis
Erpornis is a genus of small passerine birds now often placed in its own family but historically associated with vireos.
-
E.
Bierden
Bierden is a district of the town of Achim in Lower Saxony, Germany.
- 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: bursa of Fabricius in birds Target entity description: The bursa of Fabricius in birds is a specialized lymphoid organ near the cloaca that plays a crucial role in the development and maturation of B lymphocytes in avian species.
-
A.
Turdus iliacus
Turdus iliacus, commonly known as the redwing, is a small migratory thrush found across Europe and Asia, recognizable by its reddish flanks and underwing and a bold pale eyebrow stripe.
-
B.
Vogel
Vogel is a German-origin surname borne by numerous individuals, including figures in sports, arts, science, and public life.
-
C.
Vogel
Vogel is a prominent mountain and ski resort in the Julian Alps of Slovenia, overlooking Lake Bohinj and popular for hiking, skiing, and panoramic views.
-
D.
Erpornis
Erpornis is a genus of small passerine birds now often placed in its own family but historically associated with vireos.
-
E.
Bierden
Bierden is a district of the town of Achim in Lower Saxony, Germany.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
avian organ
ⓘ
lymphoid tissue ⓘ primary lymphoid organ ⓘ |
| absentIn |
amphibians
ⓘ
fish ⓘ mammals ⓘ reptiles ⓘ |
| analogousFunctionTo | bone marrow in mammals ⓘ |
| cellTypeDeveloping | B cells ⓘ |
| connectedTo | cloacal lumen ⓘ |
| contains |
lymphocytes
ⓘ
macrophages ⓘ reticular epithelial cells ⓘ stromal cells ⓘ |
| developmentalOrigin | dorsal diverticulum of the cloaca ⓘ |
| discoveredBy | Hieronymus Fabricius ⓘ |
| discoveryCentury | 16th century ⓘ |
| drainedBy | lymphatic vessels ⓘ |
| epitheliumType | pseudostratified columnar epithelium ⓘ |
| firstSiteOf |
B cell differentiation in birds
ⓘ
B cell repertoire formation in birds ⓘ |
| function |
development of B lymphocytes
ⓘ
generation of antibody-producing cells ⓘ maturation of B lymphocytes ⓘ |
| hasRegion |
follicular cortex
ⓘ
follicular medulla ⓘ mucosal folds ⓘ |
| histologicalFeature | bursa-associated lymphoid follicles ⓘ |
| lesionEffect | immunosuppression in birds ⓘ |
| locatedIn | birds ⓘ |
| locatedNear | cloaca ⓘ |
| macroscopicAppearance | sac-like diverticulum ⓘ |
| namedAfter | Hieronymus Fabricius ⓘ |
| orientation | dorsal to the cloaca ⓘ |
| partOf | avian immune system ⓘ |
| presentInLifeStage | juvenile birds ⓘ |
| richIn | lymphoid follicles ⓘ |
| roleInImmunity |
diversification of immunoglobulin repertoire
ⓘ
humoral immunity ⓘ |
| speciesExample |
chickens
ⓘ
ducks ⓘ pigeons ⓘ turkeys ⓘ |
| susceptibleTo |
Gumboro disease
ⓘ
infectious bursal disease virus ⓘ |
| undergoes | involution at sexual maturity ⓘ |
| usedIn | immunological research ⓘ |
| usedToStudy |
B cell ontogeny
ⓘ
avian immunology ⓘ |
| vascularSupply | branches of the cloacal artery ⓘ |
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: bursa of Fabricius in birds Description of subject: The bursa of Fabricius in birds is a specialized lymphoid organ near the cloaca that plays a crucial role in the development and maturation of B lymphocytes in avian species.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.