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Supraesophageal ganglion

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(Redirected from Arthropod brain)

The supraesophageal ganglion (also "supraoesophageal ganglion", "arthropod brain" or "microbrain"[1]) is the first part of the arthropod, especially insect, central nervous system. It receives and processes information from the first, second, and third metameres. The supraesophageal ganglion lies dorsal to the esophagus and consists of three parts, each a pair of ganglia that may be more or less pronounced, reduced, or fused depending on the genus:

Locust brain
Supraesophageal ganglion (5), Subesophageal ganglion (31)

The subesophageal ganglion continues the nervous system and lies ventral to the esophagus. Finally, the segmental ganglia of the ventral nerve cord are found in each body segment as a fused ganglion; they provide the segments with some autonomous control.

A locust brain dissection to expose the central brain and carry out electro-physiology recordings can be seen here.[7]

See also

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References

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  1. ^ Makoto Mizunami, Fumio Yokohari, Masakazu Takahata (1999). "Exploration into the Adaptive Design of the Arthropod "Microbrain"". Zoological Science. 16 (5): 703–709. doi:10.2108/zsj.16.703. S2CID 86501328.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ a b c Meyer, John R. "The Nervous System". General Entomology course at North Carolina State University. Department of Entomology NC State University. Retrieved 11 November 2013.
  3. ^ a b Homberg, U; Christensen, T A; Hildebrand, J G (1989). "Structure and Function of the Deutocerebrum in Insects". Annual Review of Entomology. 34: 477–501. doi:10.1146/annurev.en.34.010189.002401. PMID 2648971.
  4. ^ "Invertebrate Brain Platform". RIKEN BSI Neuroinformatics Japan Center.
  5. ^ "Deutocerebrum". Flybrain.
  6. ^ "Deutocerebrum". Invertebrate Brain Platform. Chelicerata, with their missing antennae, have a very reduced (or absent) deutocerebrum.
  7. ^ "Dissecting insect brain for in vivo electrophysiology". YouTube.

Further reading

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