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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Muscle Nerve. 2011 Sep 1;44(3):318–331. doi: 10.1002/mus.22094

Figure 2.

Figure 2

Scanning EM of the collagen us endomysial network around muscle fibers observed after digesting fibers with NaOH. (A) Low power overview of theendomysium reveals an array of “tubes” into which muscle fibers insert (arrows) as well as a thickened area surrounding the fibers that is presumably perimysium (arrowhead). (B) Higher power view of endomysial network revealing the fine structure of the endomysial surfaces (arrow) as well as some undigested muscle fiber (arrowhead). This picture suggests that muscle fibers are embedded in a complex connective tissue matrix and are intimately associated with ECM. Figure from reference2 used with permission.