Skip Navigation
The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
Donate Now Get Free Videos

Image Gallery

The Human Morula

3 days

From The Biology of Prenatal Development.Buy Now

Note:

The morula stage is reached when about 12 to 16 cells are present. This morula may contain 30 cells or more.

Label Key:

1. perivitelline space
2. zona pellucida
All ages referenced to fertilization, not last menstrual period.
Ten-Cell Embryo
Ten-Cell Embryo
Morula: Twelve-Cell Embryo
Morula: Twelve-Cell Embryo
The Human Morula
The Human Morula
Early Blastocyst
Early Blastocyst
Blastocyst
Blastocyst
Blastocyst with Inner Cell Mass
Blastocyst with Inner Cell Mass
Buy the Biology of Prenatal Development DVD
Free resources and training for educators


Add a Comment

Your Name: Log In 3rd-party login: Facebook     Google     Yahoo

Comment: