second segment of antenna [FBbt_00004514]

Second segment of the antenna located ventrolaterally to the first segment. It is larger than the first segment and somewhat swollen. It has on average 25 bristles of various sizes. The Johnston’s organ is contained in this segment.
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second segment of antenna

ID: FBbt_00004514

Adult Anatomy

Second segment of the antenna located ventrolaterally to the first segment. It is larger than the first segment and somewhat swollen. It has on average 25 bristles of various sizes. The Johnston's organ is contained in this segment.

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
pedicel exact synonym Ferris, 1950
antennal segment 2 exact synonym

Neurons with some part in second segment of antenna (67 total)

Thumbnail Name Tags
JO-EDP Adult, Nervous_system, Neuron
JO-FDL Adult, Nervous_system, Neuron
JO-FVA Adult, Nervous_system, Neuron
JO-FVL Adult, Nervous_system, Neuron
grooming behavior Johnston organ neuron Adult, Cholinergic, Mechanosensory_system, Nervous_system, Sensory_neuron

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Parts of second segment of antenna (12 total)

Thumbnail Name Tags
Johnston organ Adult, Auditory_system, Nervous_system, Sense_organ
antennal segment 2 microchaeta Adult, Mechanosensory_system, Nervous_system, Sense_organ
antennal segment 2 sense organ Adult, Nervous_system, Sense_organ
muscle cell of second antennal segment muscle 15 Adult, Muscle
posterior tooth bristle of antennal segment 2 Adult, Mechanosensory_system, Nervous_system, Sense_organ

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Expression patterns overlapping second segment of antenna (18 total)

Thumbnail Name Tags
P{Cyp4d21-GAL4.F} expression pattern Expression_pattern
P{GawB}SG26.1 expression pattern Expression_pattern
P{GawB}Dll[em212] expression pattern Expression_pattern
P{GawB}Nup205[179Y] expression pattern Expression_pattern
P{GawB}Dll[md23] expression pattern Expression_pattern

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