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

Image Gallery

Human Zygote

6 hours

Human Zygote [Click for next image]
From The Biology of Prenatal Development.Buy Now

Label Key:

1. perivitelline space
2. zona pellucida
3. cell membrane
4. artifacts
All ages referenced to fertilization, not last menstrual period.
Single-Cell Embryo
Single-Cell Embryo
Zygote
Zygote
Human Zygote
Human Zygote
The Zygote
The Zygote
Two-Cell Human Embryo
Two-Cell Human Embryo
Two-Cell Embryo
Two-Cell Embryo
Previous Set Previous Picture
Next Set Next Picture
When does health begin? Find out now.
Help give babies a healthy start and a healthy future. Donate now.