larval abdominal segmental nerve [FBbt_00002197]

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).
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larval abdominal segmental nerve

ID: FBbt_00002197

Larva Nervous system Neuron projection bundle

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).

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Classification

Relationships

Alternative Names

Synonym Scope Reference
larval abdominal SN exact synonym
larval abdominal posterior fascicle exact synonym Campos-Ortega and Hartenstein, 1997
larval segmental nerve of A1-7 exact synonym

Neurons with some part in larval abdominal segmental nerve (244 total)

Thumbnail Name Tags
abdominal 5 vesB neuron Larva, Nervous_system, Sensory_neuron
abdominal 6 vesB neuron Larva, Nervous_system, Sensory_neuron
abdominal 7 vch2 neuron Larva, Mechanosensory_system, Nervous_system, Sensory_neuron
abdominal vch2 neuron Larva, Mechanosensory_system, Nervous_system, Sensory_neuron
larval A1-7-innervating LT3/LT4 motor neuron Larva, Motor_neuron, lineage_7_NB3-2, primary_neuron

View all 244 results in VFB →

Parts of larval abdominal segmental nerve (3 total)

Thumbnail Name Tags
larval segmental nerve branch SNa of A1-7 Larva, Nervous_system, Neuron_projection_bundle
larval segmental nerve branch SNc of A1-7 Larva, Nervous_system, Neuron_projection_bundle
peripheral glial cell 4 of SNc Glial_cell, Larva, Nervous_system

View all 3 results in VFB →

Neurons fasciculating in larval abdominal segmental nerve (243 total)

Thumbnail Name Tags
abdominal 5 vesB neuron Larva, Nervous_system, Sensory_neuron
abdominal 6 vesB neuron Larva, Nervous_system, Sensory_neuron
abdominal 7 vch2 neuron Larva, Mechanosensory_system, Nervous_system, Sensory_neuron
abdominal vch2 neuron Larva, Mechanosensory_system, Nervous_system, Sensory_neuron
larval A1-7-innervating LT3/LT4 motor neuron Larva, Motor_neuron, lineage_7_NB3-2, primary_neuron

View all 243 results in VFB →