Pathways of parasympathetic and sensory cerebrovascular nerves in monkeys.

• DOI: 10.1161/01.str.22.3.331
• Publication Date: 2011-06-17T20:10:52Z
• Authors: J E Hardebo; M Arbab; N Suzuki; N A Svendgaard
• Keywords: Trigeminal ganglion

Using immunohistochemistry, we studied the origins and pathways of parasympathetic sensory nerve fibers to pial arteries in four squirrel monkeys. Following its application surface middle cerebral artery, retrograde axonal tracer True Blue accumulated neurons sphenopalatine ganglion internal carotid ganglion. The latter is strategically located where artery enters cranium. Fibers from reach cavernous sinus region after running as rami orbitales. Before reaching bypass aberrant ganglia, with most distant, ganglion, being region. also ophthalmic maxillary divisions trigeminal division a branch through sinus, bypassing it via recurrent orbitociliary nerve. Thus, forms confluence zone for In addition, leave follow abducent trochlear nerves backward basilar tentorium cerebelli, respectively. Clinical implications are discussed.