| de | decidua |
| sp | spongiotrophoblast |
| lab | labyrinth |
| TEM | transmission electron microscope |
| N | nuclear |
| MIT | mitochondrion |
| SER | smooth endoplasmic reticulum |
| RER | rough endoplasmic reticulum |
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.