FoundationalConceptsNeuroscience

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Figure 2.16. Human cerebellar neurons drawn by Golgi (left) and neurons
from human cerebral cortex drawn by Ramon y Cajal (right).
potassium dichromate silver nitrate silver chromate
(KyCrO,) (a red crys- (AgNO3) (a white (AgoCrO,) (a dark
talline salt) (marinate crystalline salt) crystal) forms and
neuraltissueinH,O + (continue the = collects in neurons
solution of KyCrO,) marination in
H20 solution
of AgNO3)
The dark crystals of silver chromate stain the neurons completely,
rendering even very minute structures exquisitely visible. (In some
variations of the procedure, glial cells are also stained.) If every neu-