Synaptic vesicles and the nerve-muscle preparation in resinless sections.

Resinless sections have been used to study the fine structural organization of cellular organelles and fibrous components at synapses. Presynaptic elements of the neuromuscular junction, representing the P.N.S., and of cerebral cortical synapses, representing the C.N.S., are examined and compared. Typical ultrastructural features are apparent in presynaptic and postsynaptic components and in the surrounding muscle and neuronal tissue demonstrating the reliability and usefulness of the technique.