These are scanning electron microscopic images of the retina from the side of vitreous body. Image 2 and 3 are the higher magnification views of image 1. While (I) in image 1 is the cell just below inner limiting membrane, (G) is a ganglion cell and (V) is a blood vessel (capillary) in retina. Pericytes (P) in image 3 with processes (arrowhead) associate the endothelial tube in retina. The blood vessels in retina are quite different from those of choriocapillaris described here before.
These are SEM images of the capillaries in the mice skin (dermis of the back skin). These are regarded as normal capillaries. Pericytes (arrows in the upper and lower images) associate the endothelial tubes. The pericytes have cell bodies (arrows) and slender processes (arrowhead of the lower image). The connective tissue composed of collagen fibers was dissolved in advance and the blood vessels remained. The slender string like structures are elastic fibers remained after the treatment for removal of connective tissue.
