Figure 9
Graphs showing frequency distributions of gaps between terminals along the motoneuron membrane. The general gap distribution was retained in both strains one week after lesion indicating that, apart from differences regarding number and covering of terminals, synaptic elimination occurred in such a way that clusters of boutons were preserved. (A and B) Graph of the number of gaps between apposed terminals per length of membrane (ÎĽm) of C57BL6/J (WT) mice on the unlesioned and lesioned sides, respectively. (C and D) Graph of the number of gaps between apposed terminals per length of membrane (ÎĽm) of iNOS-/- mice on the unlesioned and lesioned sides, respectively.