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

Hatching Blastocyst

5 days

Source: Centro Riproduzione Assistita, Catania, Italy.

Note:

The zona has served its purpose and is disintegrating just in time to free the embryo for the next step in the journey.

Label Key:

1. site of escape
2. portion of embryo outside the zona
3. portion of embryo still inside the zona
4. zona pellucida
All ages referenced to fertilization, not last menstrual period.
Blastocyst with Inner Cell Mass
Blastocyst with Inner Cell Mass
Hatching Blastocyst
Hatching Blastocyst
Hatching Blastocyst
Hatching Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst
Hatched Blastocyst


Add a Comment

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

Comment: