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area postrema

area postrema The area postrema is a small structure on each side of the fourth ventricle in the medulla.

The area postrema is a small structure on each side of the fourth ventricle in the medulla. It lies outside the blood-brain barrier and helps detect chemical signals that can trigger vomiting.

Also see

Sources

Drafting source: U.S. National Library of Medicine. Medical Subject Headings (MeSH), 2026 descriptor edition. “Area Postrema” (D031608).
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Cite this entry

PsychTerms (psychterms.org), CC BY 4.0, version 1. “area postrema.” Development preview.

Version 1 · SHA-256: 2d62cd2be089d407774faae2a0763f913e549aae5cf354abcd07fb895f2d019f

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