Pattern of projections of individual pyramidal tract neurons to the spinal cord of the monkey.
The results suggest : (1) that PT neurons sending axons to motor nuclei innervating distal forelimb muscles branch less than other PT neurons; (2) that a group of PT neurons located close together may influence various species of motoneurons, but that this influence is the strongest on motoneurons of one species; (3) that individual PT neurons terminate only on a small fraction of a given motoneuron group.
D004525:Efferent Pathways / Q000166:cytology; D009044:Motor Cortex / Q000166:cytology*; D009046:Motor Neurons / Q000166:cytology; D011712:Pyramidal Tracts / Q000166:cytology*; D013116:Spinal Cord / Q000166:cytology*