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 micrographs of human cervical mucus A. A network-shaped mesh of periovulatory (estrogenic) mucus. In this mesh there are a large number of variable size pores, scale bar = 10 μm. B. A compact network-shaped mesh of progestational (gestagenic) mucus, scale bar = 1 μm.
