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Abstract
The blood vessels of orofacial tissues are innervated by cranial parasympathetic,
superior cervical sympathetic, and trigeminal nerves, a situation somewhat different
from that seen in body skin. This review summarizes our current knowledge of the nervous
control of blood flow in the orofacial region, and focuses on what we know of the
respective roles of sympathetic, parasympathetic, and trigeminal sensory nerves in
the regulation of blood flow in this region, with particular attention being paid
to the mutual interaction between them.