Although the number of PV-positive cells has been decreased in parallel with the degree of sclerosis, their axon terminals
were present and even sprouted in the dentate gyrus, innervating larger numbers of granule cell somata and axon initial segments, than in the control.
While the size of Bp might affect axon dynamics, it is reasonable to suppose that such dynamics can also be affected later by other structural aspects of axon terminals, such as the relative distribution of Bp and Bt (33).
Histological rat brain section double-stained with Nissl showing the laminar location of labeled corticocortical axon terminals after a single iontophoretic injection of biotinylated dextran amine in S1.
Axon terminals in secondary somatosensory area (S2), parietal rhinal area (PR), parietal ventral area (PV) and contralateral primary somatosensory area (S1c) presented similar morphological components (P>0.05) based on segment length per millimeter (B) or bifurcation density per millimeter (C).
For example, lanceolate endings are usually attached to the glassy membrane, (22,38) and the axon terminals of Merkel endings at the level of the ring sinus are situated inside the glassy membrane, that is, in the outer root sheath.
Eleven of the 16 peripheral processes having club-like endings did not branch between the cell body and the axon terminal (Figs.
6) Increased inhibitory feedback on the axon terminal
These reuptake inhibitors, as the names suggest, target the reuptake transporter molecules in the axon terminal and prevent the removal of serotonin and noradrenaline from the synapse.
1997) and also can activate dopamine release from axon terminals (Grady et al.
One interesting facet of the action of this receptor is that often it resides on axon terminals that contain and release GABA.
In contrast, inputs in vertebrate neurons generally are exclusively received over the soma and its dendritic tree, quite separate from the output region at the axon terminal