List 2 methods for demonstration of nerve cell processes.

• A. Bodian, Holmes
• B. Bodian, Luxol fast blue
• C. Cresyl echt violet, Crystal violet
• D. Gold sublimate, Borax ferricyanide

Answer: (A)

Demonstrating nerve cell processes relies on staining methods that selectively impregnate neural processes (axons and dendrites) so they stand out against the surrounding tissue. Silver impregnation techniques do exactly this, making fine neurites visible. Bodian stain is a classic silver method used to reveal nerve fibers and neurofilaments, highlighting axons and their branches in both central and peripheral nervous tissue. Holmes stain is another silver-based technique that emphasizes nerve fibers, producing clear visualization of neurites and their networks. Using these two methods together provides a reliable demonstration of nerve cell processes, which is why they are the best pair for this purpose. The other options focus more on myelin (Luxol fast blue) or cell bodies (Nissl-like Cresyl echt violet) or are not as specific to neurites, so they don’t demonstrate nerve processes as directly.