Fig. 2.1.32. Appearances of astrocyte processes (blue) in electron  micrographs from hippocampal cortex (stratum radiatum - A), cerebellar  cortex (molecular layer - B) and thalamus (ventrobasal nucleus - C).  Whereas astrocytic processes completely ensheathe cerebellar  dendritic spines (B) and even in several layers synaptic glomerulus in  thalamus (C), they only partially touch spines in hippocampal cortex  (A). Dendrites and/or their spines colored in yellow. (Cf. next three  figures.)