Which staining method allows visualization of individual neurons?

Which staining method allows visualization of individual neurons?

• A. Golgi stain
• B. Nissl stain
• C. Weigert stain
• D. Prussian blue stain

Answer: (A)

The staining method that reveals full neuron morphology is the one that impregnates the entire cell with a dark tracer, making the soma, dendrites, and even long axons visible. This is the Golgi stain, which randomly and sparsely stains a small number of neurons in their complete form using silver chromate. That complete visualization lets you trace individual neurons as distinct units. In contrast, a Nissl stain highlights the rough endoplasmic reticulum inside cell bodies and is great for counting neurons and assessing soma features, but it doesn’t show the dendritic and axonal processes. Stains like Weigert emphasize myelin around axons and tracts rather than whole neurons, and Prussian blue marks iron deposits rather than neuronal structure. So for seeing an individual neuron's full architecture, the Golgi stain is the best choice.

The staining method that reveals full neuron morphology is the one that impregnates the entire cell with a dark tracer, making the soma, dendrites, and even long axons visible. This is the Golgi stain, which randomly and sparsely stains a small number of neurons in their complete form using silver chromate. That complete visualization lets you trace individual neurons as distinct units. In contrast, a Nissl stain highlights the rough endoplasmic reticulum inside cell bodies and is great for counting neurons and assessing soma features, but it doesn’t show the dendritic and axonal processes. Stains like Weigert emphasize myelin around axons and tracts rather than whole neurons, and Prussian blue marks iron deposits rather than neuronal structure. So for seeing an individual neuron's full architecture, the Golgi stain is the best choice.