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.
Mesentery contains many small (splanchnic) nerves that are mostly seen in cross-section. Each of these nerves consists of a bundle of nerve fibers (fascicles).
Connective tissue:
Epineurium - dense irregular connective tissue surrounding each nerve.
Perineurium - because there is a single fascicle in these small nerves, the perineurium is found immediately inside the epineurium. It consists of two parts:
Fibrous Layer - an outer layer of connective tissue that is indistinguishable from the epineurium..
Cellular Layer - inner cellular layer (3 to 8 cells thick) of flattened fibroblasts.
Nerve Fibers - have a wavy appearance and are seen in both cross-sections and longitudinal sections.
Schwann Cells - their large round to oval nuclei are seen infrequently seen alongside nerve fibers.
Fibroblasts - their long, narrow nuclei are scattered within the nerve. In cross-section, they appear as small round nuclei. (The most common type of nuclei seen within the nerves.)