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periaqueductal gray
periaqueductal gray The periaqueductal gray is a region of central gray matter that surrounds the cerebral aqueduct in the midbrain.
The periaqueductal gray is a region of central gray matter that surrounds the cerebral aqueduct in the midbrain. It is thought to be involved in pain and in several responses such as rage, feeding, bladder tone, and the lordosis reflex.