Fenestrations in regenerating skeletal muscle capillaries.
A new observation of fenestrae with diaphragms in the endothelial wall of regenerating skeletal muscle capillaries is described in seven-day-old wounds of the cremaster muscle of adult male guinea pigs. The fenestrations were 44 nm in diameter and contained diaphragms with a central dense structure. These findings suggest an additional route for physiological exchange mechanisms in wound capillaries.
D000818:Animals; D001485:Basement Membrane / Q000648:ultrastructure; D002196:Capillaries / Q000502:physiology / Q000648:ultrastructure*; D004727:Endothelium / Q000648:ultrastructure; D006168:Guinea Pigs; D007365:Intercellular Junctions / Q000648:ultrastructure; D008297:Male; D009132:Muscles / Q000098:blood supply* / Q000293:injuries; D012038:Regeneration