RID20737 central gray substance of midbrain

synonym Periaquäduktale graue Substanz anulus aquaeductus anulus aqueductus cerebri anulus of cerebral aqueduct central (periaqueductal) gray griseum centrale griseum centrale mesencephali griseum periventriculare mesencephali periaquaductal gray matter periaqueductal gray periaqueductal gray matter periaqueductal gray of tegmentum periaqueductal grey substance substantia grisea centralis mesencephali