![](https://synapseweb.clm.utexas.edu/sites/default/files/styles/os_files_xlarge/public/synapseweb/files/2_3_1_9_0.gif?m=1484252010&itok=WRGajVu4)
Fig. 2.3.1.09. Very unusual situation showing a dendritic spine (s) invaginated into the Ranvier node of a myelinated axon (m), where it makes a synapse (arrow and inset). Scale = 1 um. (Mouse, neocortex.) Download the high resolution image; Download the high resolution image (inset).