Fig. 2. ENC1 and post-synaptic ciliary cells viewed under DIC optics. (A) ENC1 soma (horizontal arrow) and its primary neurite (vertical arrowheads) projecting towards the dorsolateral (DLB) and pedal ciliary (PB) bands. (B) ENC1 viewed through a series of descending focal planes. The sensory-like dendritic knob (horizontal arrowhead) is located on the embryo surface (left panel), leading to a stubby apical process containing numerous prominent vesicles (vertical arrows) just below the surface (middle panel). Below that sits the soma, with its characteristic large nucleus (horizontal open arrow) and prominent nucleolus (vertical open arrow, right panel). Scale bar, 10 µm.