Motor Neuron: Nissl Bodies
Motor Neuron: Nissl Bodies

Motor Neuron: Nissl Bodies

Nissl stain is used to label rough endoplasmic reticulum in neurons. The dark blue structures are referred to as Nissl bodies but are the equivalent of the rough endoplasmic reticulum. Note how Nissl bodies are confined to the soma and dendrites; they do not extend into the axon.