title: Origin of sympathetic innervation of the knee joint in the cat: a retrograde tracing study with horseradish peroxidase.
abstract: In the cat the origin of sympathetic nerve fibers in the medial and posterior articular nerve (MAN and PAN) of the knee joint was studied using retrograde labeling with horseradish peroxidase (HRP). Three to 5 days after uptake of HRP by MAN per cat 404 +/- 136 labeled somata (mean +/- S.D., n = 4 cats) were found mainly in the paravertebral ganglia L4 and L5 of the ipsilateral sympathetic trunk, and uptake of HRP by PAN labeled per animal 532 +/- 155 cell bodies (mean +/- S.D., n = 4 cats) mainly in the paravertebral ganglia L5 and L6. The cross-sectional areas of the labeled somata ranged from 200 to 1300 microns 2 with a mean of about 620 microns 2.
authors.affiliation: Physiologisches Institut der Universität Würzburg, F.R.G.
authors.forename: B
authors.initials: B
authors.lastname: Heppelmann
authors.forename: H G
authors.initials: HG
authors.lastname: Schaible
mesh_terms: D000320:Adrenergic Fibers / Q000502:physiology*; D000818:Animals; D002415:Cats / Q000033:anatomy & histology*; D006735:Horseradish Peroxidase; D007719:Knee Joint / Q000294:innervation*
chemical_list: D006735:Horseradish Peroxidase