The related end bulb of Held is a smaller synapse found in other auditory brainstem structures.

This improves efficiency compared to the older side inserted bulb or a double ended bulb which requires two holes.

The End bulb of Krause is a thermoreceptor that picks up on the sensation of cold temperatures.

The cold-receptors end in Krause's end bulb, named for the German anatomist Wilhelm Krause, who described them in 1860.

Named due to the branching, tree-like, nature of their dendritic fields, visible using Golgi's method, they receive large end bulbs of Held from auditory nerve fibers.

Bushy cells in the anterior ventral cochlear nucleus (AVCN), which receive end bulbs of Held from auditory nerve fibers, project to the superior olivary complex through the trapezoid body and intermediate acoustic stria.