(Kelly of the Clue Crew shows a brainy animation on the monitor.)  When cerebral arteries become dilated, it can often lead to this vascular pain also known as cephalalgia
[DOC] [TLE] Pathophysiology What Happens In Your Brain During A Migraine ... [PAR] We know that there are waves of electrical changes that go across the brain, 
starting ... of blood vessels in the brain during cortical spreading depression 
show that ... pain, perhaps moreso in chronic headache, although their story is 
still being ... it is clear that vascular changes occur in migraine, it does not mean 
migraine is... [DOC] [TLE] Vasodilation - Wikipedia [PAR] Vasodilation (or vasodilatation) refers to the widening of blood vessels.