Segmental serotoninergic innervation of spinal cord arterial circulation.
A rich serotoninergic innervation of the anterior spinal artery has been evidenced by histofluorescence. The main contribution to this adventitial serotoninergic plexus appears to originate from a serotonin fiber network in the anterior horns: serotonin-containing fibers reach the dorsal termination of the sulcocommissural artery and run within its wall in a ventral direction, toward the anterior spinal artery. This segmental arrangement of blood vessel innervation could be the basis for a neurogenic control of local blood circulation.
D000818:Animals; D001158:Arteries / Q000294:innervation; D002415:Cats; D006651:Histocytochemistry; D008856:Microscopy, Fluorescence; D012701:Serotonin / Q000378:metabolism*; D013116:Spinal Cord / Q000098:blood supply*; D013127:Spinal Nerves / Q000378:metabolism*
D012701:Serotonin