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

Blastocyst

4 days

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

Label Key:

1. cavity within blastocyst
2. zona pellucida
All ages referenced to fertilization, not last menstrual period.
The Human Morula
The Human Morula
Early Blastocyst
Early Blastocyst
Blastocyst
Blastocyst
Blastocyst with Inner Cell Mass
Blastocyst with Inner Cell Mass
Hatching Blastocyst
Hatching Blastocyst
Hatching Blastocyst
Hatching Blastocyst
Previous Set Previous Picture
Next Set Next Picture
Free resources and training for educators
Help give babies a healthy start and a healthy future. Donate now.