5.20.

Fig. 5.20. Peripheral nerve - a semithin epoxy-resin section. Light microscopy of semithin (0.5 µm) sections from material processed for electron microscopy offers high resolution views intermediate between conventional light microscopy and electron microscopy. P - perineurium, arrow - myelinated axons, v - blood vessels. Scale = 50 µm. (Human, sural nerve.)