bursa of Fabricius

UBERON:0003903 ·resolve ·HOST_ASSOCIATED ·EXACT SEEDED

An epithelial and lymphoid organ that develops as a dorsal diverticulum of the proctodeal region of the cloaca in birds. The luminal (interior) surface of the bursa is plicated with as many as 15 primary and 7 secondary plicae or folds. These plicae have hundreds of bursal follicles containing follicle-associated epithelial cells, lymphocytes, macrophages, and plasma cells. Lymphoid stem cells migrate from the fetal liver to the bursa during ontogeny. In the bursa, these stem cells acquire the characteristics of mature, immunocompetent B cells[WP]. The bursa is an organ found in birds involved in B cell differentiation[GO]. — UBERON

Machine-generated and unreviewed. Its grounding comes from the seeder's rules, not from a curator.

Source attestations

Each upstream vocabulary's own account of this habitat. Assertion counts are per-source units and are not comparable across sources — GOLD counts organisms, BacDive strains, PREGO taxa.

What each upstream vocabulary says about this habitat
Source	Label / path	Assertions	Unit
GOLD	Host-associated > Birds > Lymphatic system > Bursa of Fabricius 2 GOLD ecosystem node ids share this path; first shown. See data/raw/gold_ecosystem_paths.tsv.	—

Broader habitats

hemopoietic organ UBERON:0004177
cloacal bursa UBERON:0011510
digestive system element UBERON:0013765
Lymphatic system habitatmech:GOLD.f65007e88e

Provenance

Generated by scripts/seed_from_sources.py from the committed inventories in data/raw/. View the record.