Relay Thalamic Nuclei

During the development of neuronal activity of the thalamic nuclei, attention is drawn to the striking uniformity of the processes occurring in different relay nuclei during afferent stimulation. The main reason for the activation of relay nuclei is the specialization of inputs and high-precision transmission with the addition of an input signal as in non-anesthetized animals. Of particular interest is the fact of the reliability of the synaptic site, not counting the fact that the second-order afferents (lemniscal) are located exclusively on the dendrites of relay thalamocortical neurons, as is the case in n. VP[1] or in n. VL, where the axodendritic connections found between the afferents of the connecting legs and the relay neurons of this nucleus are similar. The afferent wave does not decay in the relay nucleus, which apparently contributes to the development of EPSP (excitatory postsynaptic potential) of the "all or none" type, as well as the appearance of partial or complete peaks already in the dendrites.