adult anterior optic tract [FBbt_00100337]

Tract that emerges from the medial part of the lobula (Ito et al., 2014. One branch ends in the anterior optic tubercle (AOTU) whilst the other makes a medial turn to terminate in the superior medial posterior ventrolateral protocerebrum (PVLP) of the adult brain (Ito et al., 2014. It demarcates the boundaries of the PVLP (lateral region), anterior VLP (superior and lateral region), AOTU (inferior-lateral region) and lateral horn (inferior region) (Ito et al., 2014. (Fischbach and Lyly-Hunerberg, 1983, Ito et al., 2014)

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adult anterior optic tract

adult anterior optic tract

adult anterior optic tract

ID: FBbt_00100337

Adult Nervous system Neuron projection bundle

Tract that emerges from the medial part of the lobula (Ito et al., 2014. One branch ends in the anterior optic tubercle (AOTU) whilst the other makes a medial turn to terminate in the superior medial posterior ventrolateral protocerebrum (PVLP) of the adult brain (Ito et al., 2014. It demarcates the boundaries of the PVLP (lateral region), anterior VLP (superior and lateral region), AOTU (inferior-lateral region) and lateral horn (inferior region) (Ito et al., 2014. (Fischbach and Lyly-Hunerberg, 1983, Ito et al., 2014)

Fischbach and Lyly-Hunerberg, (1983), subdivide the anterior optic tract (AOT) into four sub-bundles: S1-S4. S1 consists of 100-110 think axons surrounded by ~60 large diameter neurons that form the S2 bundle. These bundles together occupy the proximal part of the AOT close to the neuropil of the lateral protocerebrum. S3 forms the lateral ventral part of the AOT and is formed by ~430 axons of small diameter that project into the anterior optic foci. S4 is composed of approximately 660 relatively small fibers.

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Classification

Relationships

innervates: anterior optic tubercle, lobula, posterior ventrolateral protocerebrum
is part of: adult cerebral ganglion

Alternative Names

Synonym	Scope	Reference
AOT	exact synonym	Ito et al., 2014
MT tract	narrow synonym	Tai et al., 2021
AOT(R)	related synonym	Scheffer et al., 2020
medulla-tubercle tract	narrow synonym

Downloads

Image files aligned to AOT(R) on JRC_FlyEM_Hemibrain:

Image files aligned to anterior optic tract on adult brain template Ito2014:

Graphs For

Region containment hierarchy of adult anterior optic tract

References

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