Skip Navigation
The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
  • English
Español
Português
Educator Login / Register
Donate Now Get Free Videos

Slideshow: Entire Image Gallery by EHD

Zygote

#6, Slide 13 of 312

6 hours

From The Biology of Prenatal Development.Buy Now

Label Key:

1. zona pellucida
2. cell membrane
3. perivitelline space
4. artifact
5. cytoplasm
All ages referenced to fertilization, not last menstrual period.
Help give babies a healthy start and a healthy future. Donate now.
Free resources and training for educators