retrotrapezoid nucleus

noun

A thin layer of not very densely packed neurons lying between the facial nucleus and the ventral surface of the medulla, which serves as a CO₂ and H⁺ sensor for regulating breathing.

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Meanings

nounretrotrapezoid nucleus (plural retrotrapezoid nuclei)

plural retrotrapezoid nuclei

  1. A thin layer of not very densely packed neurons lying between the facial nucleus and the ventral surface of the medulla, which serves as a CO₂ and H⁺ sensor for regulating breathing.
Cite this entry
APA

retrotrapezoid nucleus. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/retrotrapezoid%20nucleus

MLA

“retrotrapezoid nucleus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/retrotrapezoid%20nucleus. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “retrotrapezoid nucleus,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/retrotrapezoid%20nucleus.

Source: retrotrapezoid nucleus on Wiktionary, CC BY-SA 4.0.