FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

larval A18b neuron

ID (Ontology)

FBbt:00048579 (Fly Anatomy)

Definition

Cholinergic premotor neuron of the larval abdominal neuromere that is part of lineage 18 (Carreira-Rosario et al., 2018). A18b neurons activate sequentially (anterior to posterior) during backwards locomotion (Carreira-Rosario et al., 2018). The A1 neuron, but not those in other neuromeres, receives input from a mooncrawler descending neuron (Carreira-Rosario et al., 2018).[ FlyBase:FBrf0238464 ]

Comment

Links to External Ontologies

VFB:FBbt_00048579

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Constructs
larval A18b neuron (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

larval neuron
 |__larval premotor neuron______________________
 |__larval cholinergic neuron___________________|
lineage NB2-4 primary interneuron               |
 |__larval abdominal NB2-4 primary interneuron__|
abdominal neuron                                |
 |__larval abdominal NB2-4 primary interneuron__|
cholinergic neuron                              |
 |__larval cholinergic neuron___________________|
ventral ectoderm derivative                     |
 |__larval abdominal NB2-4 primary interneuron__|
premotor neuron                                 |
 |__larval premotor neuron______________________|
larval interneuron                              |
 |__larval abdominal NB2-4 primary interneuron__|
                                                larval A18b neuron  1 rec.
                                                 |__larval abdominal 1 A18b neuron
                                                 |__larval abdominal 2 A18b neuron
                                                 |__larval abdominal 3 A18b neuron
                                                 |__larval abdominal 4 A18b neuron
                                                 |__larval abdominal 5 A18b neuron
                                                 |__larval abdominal 6 A18b neuron

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	larval abdominal NB2-4 primary interneuron larval premotor neuron larval cholinergic neuron
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00048579