Dr. Roberto Weigert and Dr. Andrius Masedunskas

National Institutes of Health
Bethesda, Maryland, USA
Specimen: Mammary glands in a live, lactating mouse. White blood cells move inside the capillaries surrounding the acini that form the mammary glands. Endothelial cells, white blood cells and acinar epithelium are green.
Technique: Confocal microscopy