Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Electron micrograph showing a macrophage foam cell, the cytoplasm of which filled with a large number of ‘lipid droplets’ (L). N – nucleus. Atherosclerotic plaque tissue specimen of the human aorta. Transmission electron microscopy (TEM); scale bar = 5 μm.
