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# System prepended metadata

title: Anatomy - Area posterma
tags: [Anatomy, Area_posterma]

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title: Anatomy - Area posterma
disqus: hackmd
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> Documentation [name=MrDr.Staffan]
###### tags: `Anatomy` `Area_posterma`

### Table of Contents

[TOC]
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[Top](#Table-of-Contents)


![](https://i.imgur.com/HLdg89A.png) ![](https://i.imgur.com/GCw9VQa.png)

#8 (Aldh1a2 in right picture)

Circumventricular organ having permeable capillaries and sensory neurons that enable its dual role to detect circulating chemical messengers in the blood and transduce them into neural signals.

Its position adjacent to the bilateral nuclei of the solitary tract and role as a sensory transducer allow it to integrate blood-to-brain autonomic functions. Such roles of the area postrema include its detection of circulating hormones involved in vomiting, thirst, hunger, and blood pressure control