diffcron of fibroblasts, cell growth. stem cell and young fibroblast.

organ pink font text brand circle eye nose petal lip hand finger face red skin ear purple mouth heart fibroblast stem cell fibrocyte diferon young old medicine cosmetology rejuvenation biology surgery acupuncture fibroblast elastic skin lymphocyte fibers mitochondria nk structure anatomy vector dermis immune collagen macrophage layer system diagram elastin human wrinkle