T. Clark Brelje, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455
Robert L. Sorenson, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455
Any view of a slide can be saved for later viewing in different ways.
Clipboard
The address of this view has been copied to your clipboard. This link can be pasted in any other program.
Bookmark
A bookmark link can be created using the bookmark function (Ctrl-D for Windows or Cmd-D for Mac) of your browser. Choose a name for the bookmark and select the folder in which you want it saved.
The myelin sheath of peripheral nerve fibers formed by successive layering of plasma membranes of Schwann cells. It is periodically interrupted by gaps referred to as nodes of Ranvier. This area is not covered by the myelin sheath.
A longitudinal section of a myelinated nerve:
Nerve Fibers (green) - axon of a nerve cell
Many neurofilaments
Slender mitochondria (red) and endoplasmic reticulum (cyan)
Schwann Cell (blue) - layers of myelin that encircle the axon
Myelin Sheath (dark blue)
Node of Ranvier - region of the axon not covered by a myelin sheath
Finger-like processes of neigkhboring Schwann cells interdigitate and cover the nodal area