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.
Scanning electron microscopy (SEM) image of a critical-point-dried liver sinusoidal endothelial cell in culture, 2500 ×. After isolation and purification, cells were seeded on a layer of collagen. Besides the centrally located, bulging nucleus, fenestrae can be easily observed in the surrounding thin, flat cytoplasm.
