# Drosophila Gross Anatomy Ontology (FB-BT)

> An ontology representing the gross anatomy of Drosophila melanogaster

- Page: https://library.schematica.io/model/2583250248e8419398ec0faeddc97294
- Model type: Ontology
- License: CC BY 4.0
- Access type: Free
- Access method: Download
- Model size: Huge
- Formats: OBO
- Domains: Healthcare
- External link: https://bioportal.bioontology.org/ontologies/FB-BT
- Contact: Claire Pilgrim (cp390@cam.ac.uk)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | FB-BT |
| Description | An ontology representing the gross anatomy of Drosophila melanogaster |
| Format | OBO |
| Categories | Anatomy, Gross Anatomy, Animal Gross Anatomy |
| Groups | OBO Foundry |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 28,646 |
| Individuals | 0 |
| Properties | 44 |
| Max Depth | 15 |
| Max Child Count | 7,782 |
| Average Child Count | 16 |
| Classes With One Child | 484 |
| Classes With More Than 25 Children | 272 |
| Classes With No Definition | 399 |

## Projects using FB-BT

- [FlyBase](https://bioportal.bioontology.org/projects/FlyBase)
- [Bgee](https://bioportal.bioontology.org/projects/Bgee)
- [VIrtual Fly Brain](https://bioportal.bioontology.org/projects/VFB)

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Source: https://library.schematica.io/model/2583250248e8419398ec0faeddc97294