Spinocerebellar neurones in the guinea pig--a morphological study.
The morphology and distribution of spinocerebellar neurones were examined in the guinea pig. Horseradish peroxidase was injected into the cerebellum, and after a survival time of 72 h retrogradely labelled cells were examined in the spinal cord. The distribution of spinocerebellar cells was similar to that previously demonstrated in the rat. Three major groups of neurones were distinguished: the central cervical nucleus (C1-C2), Clarke's column (T2-L3) and spinal border cells (L3-L6). Neurones in the central cervical nucleus were multipolar, had mean equivalent diameters of about 24 microns, and their axons ascended on the contralateral side of the spinal cord. Neurones in Clarke's column were spindle-shaped, approximately 25 X 35 microns, and their axons ascended on the ipsilateral side of the spinal cord. Spinal border cells were multipolar, with mean equivalent diameters of about 35 microns; their axons were predominantly crossed.
Tracey
D J
DJ
Neural Research Laboratory, School of Anatomy, University of New South Wales, Kensington, Australia.
Walmsley
B
B
Forsythe
I D
ID
D000818:Animals; D002452:Cell Count; D002531:Cerebellum / Q000033:anatomy & histology*; D006168:Guinea Pigs; D006735:Horseradish Peroxidase; D009474:Neurons / Q000145:classification / Q000166:cytology*; D013116:Spinal Cord / Q000033:anatomy & histology*; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins
D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins; D006735:Horseradish Peroxidase