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dorsal raphe nucleus

cell group b7

Extending from the anterior part of the pons through the mesencephalon, the dorsal raphe nucleus is a large raphe nucleus whose neurons are serotoninergic. It is organised into rostral and caudal subdivisions, and the rostral aspect is divided further into interfascicular, ventral, ventrolateral, and dorsal subnuclei. Those subdivisions are not merely descriptive: the projections of the dorsal raphe vary topographically, so the subnuclei differ from one another in where their fibres terminate. An increased number of cells in the lateral aspects of the nucleus is characteristic of humans and other primates. It is recorded under the designation cell group b7 and classified as a nucleus of the midbrain reticular formation.

A large raphe nucleus extending from the anterior part of the pons through the mesencephalon; its neurons are serotoninergic[NIF]. The dorsal raphe nucleus is a part of the raphe nucleus and consists of rostral and caudal subdivisions. The rostral aspect of the dorsal raphe is further divided into interfascicular, ventral, ventrolateral and dorsal subnuclei. The projections of the dorsal raphe have been found to vary topographically, and thus the subnuclei differ in their projections. An increased number of cells in the lateral aspects of the dorsal raphe is characteristic of humans and other primates. [WP,unvetted].

On this page
Type Nerve
Body System Nervous
Parent Structure nucleus of midbrain reticular formation
Latin Name cell group b7
FMA ID 68462

Frequently Asked Questions

What is the dorsal raphe nucleus?

A large raphe nucleus extending from the anterior part of the pons through the mesencephalon; its neurons are serotoninergic[NIF]. The dorsal raphe nucleus is a part of the raphe nucleus and consists of rostral and caudal subdivisions. The rostral aspect of the dorsal raphe is further divided into i

What body system is the dorsal raphe nucleus part of?

The dorsal raphe nucleus is part of the Nervous.

What is the Latin name for the dorsal raphe nucleus?

The Latin name for the dorsal raphe nucleus is cell group b7.

References

  1. Foundational Model of Anatomy — FMA:68462 Reference anatomy ontology (University of Washington)
  2. UBERON — UBERON:0002043 Cross-species anatomy ontology (EMBL-EBI Ontology Lookup Service)

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.