Myelinated Nerve Fibers

Myelinated Nerve Fibers
Nerve trunk in longitudinal section. Mallory's stain. Magnification 400x.

Examine the blue stained Schwann's sheaths (neurilemma) with their red staining nuclei. Also note the pale staining vesicular myelin. The indentation designated by the pointer in both images is the structure named the node of Ranvier.

 
Myelinated Nerve Fiber
Nerve trunk in longitudinal section. Mallory's stain. Magnification 600x.
At higher magnification, again examine the blue stained Schwann's sheaths (neurilemma) with their red staining nuclei. Also note the pale staining vesicular myelin. The indentation designated by the pointer in both images is the structure named the node of Ranvier.