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| Term | larval abdominal segmental nerve | ID (Ontology) | FBbt:00002197 (Fly Anatomy) | ||||||||||||||||||||||||||||||||||||||||||||
| Definition | Larval segmental nerve of a larval abdominal segment. These are only found in segments A1-7, as A8 and A9 do not have separate segmental and intersegmental nerves (Campos-Ortega and Hartenstein, 1997). It has two roots, anterior and posterior, both formed from neurons of the same segment as the nerve (Campos-Ortega and Hartenstein, 1997). Proximally it shares a glial sheath with the intersegmental nerve before branching from it at the ventral edge of the ventral oblique muscles (Campos-Ortega and Hartenstein, 1997). A thick, posteriorly directed branch (SNc) leaves the main trunk of the nerve (SNa) and splits into fine branches - 3 carrying axons from the ventral sensory cluster and a 4th carrying efferents to the ventral acute musculature (Campos-Ortega and Hartenstein, 1997). The SNa branch continues dorsally and carries efferent axons innervating the external lateral transverse and lateral oblique muscles and the axons of v'es2 and v'ch1 (Campos-Ortega and Hartenstein, 1997).[ FlyBase:FBrf0089570 FlyBase:FBrf0099344 ] | ||||||||||||||||||||||||||||||||||||||||||||||
| Also Known As | "larval abdominal posterior fascicle" ; "larval abdominal SN" ; "larval segmental nerve of A1-7" | ||||||||||||||||||||||||||||||||||||||||||||||
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| VFB:FBbt_00002197 | |||||||||||||||||||||||||||||||||||||||||||||||
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| Records annotated with this term OR any of its CHILD TERMS | |||||||||||||||||||||||||||||||||||||||||||||||
Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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abdominal nerve |__larval abdominal nerve__ nerve | |__larval segmental nerve__| larval abdominal segmental nerve 297 rec. |
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| Is a |
larval segmental nerve larval abdominal nerve |
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| Part of | larval abdominal segment A1-7 | ||
Synonyms & Secondary IDs
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External Crossreferences & Linkouts
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| VFB:FBbt_00002197 | |||