periaqueductal gray

(redirected from Periaqueductal grey)

periaqueductal gray

a core of gray matter nervous tissue surrounding the cerebral aqueduct in the midbrain.
References in periodicals archive ?
Passive mobilization may stimulate the SNS and activate the descending pain inhibitory mechanism which increases sympathetic activity and decreases pain due to the release of noradrenaline from the dorsal periaqueductal grey area.
During the resting brain scan, the women consuming probiotics showed greater connectivity between a key brainstem region known as the periaqueductal grey and cognition-associated areas of the prefrontal cortex.
A role of periaqueductal grey NMDA receptors in mediating formalin-induced pain in the rat.
Associated neurobiological structures and functions associated with the FFFS are the periaqueductal grey, medial hypothalamus, and amygdala, and serotonergic inputs into these structures.