Periaqueductal gray

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

The periaqueductal gray (PAG), also known as the central gray, is a brain region that plays a critical role in autonomic function, motivated behavior and behavioural responses to threatening stimuli. PAG is also the primary control center for descending pain modulation.

Excerpt from the Wikipedia article “Periaqueductal gray”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Jmarchn, CC BY-SA 3.0, via Wikimedia Commons.