Image Credits

The photos on this site shared under Creative Commons licenses, credited as those licenses ask.

The cartilage and bone of a knee joint under a light microscope, stained blue and purple
“Cartilage from mouse joint” by Kevin Mackenzie, University of Aberdeen, Wikimedia Commons, CC BY 4.0.
A field of cardiac fibroblast cells glowing red under a fluorescence microscope
“Actin filaments of cardiac fibroblasts” by Lorenzo2697, Wikimedia Commons, CC BY 4.0.
Human fibroblast cells under a fluorescence microscope, their mitochondria glowing red around blue nuclei
“Fibroblast,polydopamine nanoparticles and mithocondria” by Matteo Battaglini, Wikimedia Commons, CC BY 4.0.
A sebaceous (oil) gland in the skin under a light microscope, its pale cells clustered like the branches of a tree
“Tree of Life in sebaceous gland” by Pathologist without beard, Wikimedia Commons, CC BY 4.0, cropped.
Fluorescence microscopy of cultured cells: blue nuclei inside green networks of fibers, with red mitochondria
“Indian Muntjac fibroblast cells (24271618921)” by ZEISS Microscopy, Wikimedia Commons, CC BY 2.0.