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. Author manuscript; available in PMC: 2010 Jan 20.
Published in final edited form as: J Comp Neurol. 2009 Jan 20;512(3):359–372. doi: 10.1002/cne.21885

Figure 5.

Figure 5

Inset: Drawing of spinal gray matter divided into radial sectors for measure of quadriceps motoneuron dendritic distribution. Length per radial bin of quadriceps dendrites of normal males (black bars) and saporin-injected animals that were either untreated (SAP, unfilled bars), or treated with testosterone (SAP+T, gray bars). For graphic purposes, dendritic length measures have been collapsed into 6 bins of 60° each. Quadriceps motoneuron dendritic arbors display a non-uniform distribution, with the majority of the arbor located between 300° and 120°. Following saporin-induced motoneuron death, surviving nearby motoneurons had reduced dendritic length in every radial bin. Treatment with testosterone attenuated this reduction. Bar heights represent means ± SEM. * indicates significantly different from normal males. † indicates significantly different from untreated saporin-injected animals.