#periaqueductal_gray
Periaqueductal gray
Nucleus surrounding the cerebral aqueduct
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. It has enkephalin-producing cells that suppress pain.
Thu 22nd
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