title: Spinal projections of cat primary afferent fibers innervating caudal facet joints.
abstract: The spinal projections of afferent fibers innervating the facet joints between caudal vertebrae were examined by the use of anterograde transport of wheat germ agglutinin-horseradish peroxidase (WGA-HRP). Experiments were performed on 5 adult cats in which spinal dorsal roots below the 2nd sacral segment (S2) on the right side were cut. Injections of WGA-HRP into the caudal facet joints gave rise to extensive cranio-caudal distribution of WGA-HRP positive products along the spinal cord, indicating that many afferent fibers innervating unilateral facet joints terminate bilaterally in laminae I-II, V-VI and X of the thoracic, lumbar, sacral and caudal spinal cord. These afferent fibers may convey a series of sensory information from the caudal facet joints to the spinal cord.
authors.affiliation: Department of Veterinary Physiology, Faculty of Agriculture, Yamaguchi University, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Furukawa
authors.forename: N
authors.initials: N
authors.lastname: Wada
authors.forename: M
authors.initials: M
authors.lastname: Tokuriki
authors.forename: H
authors.initials: H
authors.lastname: Miyata
mesh_terms: D000344:Afferent Pathways / Q000033:anatomy & histology*; D000818:Animals; D002415:Cats; D005260:Female; D008159:Lumbar Vertebrae; D008297:Male; D013116:Spinal Cord / Q000033:anatomy & histology*; D013623:Tail / Q000294:innervation*; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate
chemical_list: D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate