Fig. 7.1.34. This complex convolution with multitubular body (large arrow) is a derivate of endoplasmic reticulum characteristic of thalamic neurons. It may be related to the formation of extensive non-synaptic interneuronal junctions in thalamus (see section 1.7, Intercellular Junctions Other Than Chemical Synapses). Polyribosomes are marked by empty arrows. Scale = 500 nm. (Rat, thalamic ventrobasal nucleus.) Download the high resolution image.