AREA POSTREMA

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refers to a highly vascularized region of the brain, which is located on the basal wall of the lateral ventricle. Brain capillaries in this area form a relatively permeable part of the blood-brain barrier. This enables the passage of toxic substances to the underlying chomoreceplor trigger zone, which elicits a vomiting response, in response to the detection of a noxious substance.

AREA POSTREMA: "The area postrema represents a permeable area of the blood-brain barrier that promotes vomiting when toxic substances are detected. "
Cite this page: N., Sam M.S., "AREA POSTREMA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/area-postrema/ (accessed December 8, 2021).

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