Skip Navigation

Movie Theater

The Morula and Blastocyst


 

5 days

Buy NowFrom The Biology of Prenatal Development.

Script: By 3 to 4 days after fertilization, the dividing cells of the embryo assume a spherical shape and the embryo is called a morula.

By 4 to 5 days, a cavity forms within this ball of cells and the embryo is then called a blastocyst.

The cells inside the blastocyst are called the inner cell mass and give rise to the head, body, and other structures vital to the developing human.

All ages referenced to fertilization, not last menstrual period.
 <  Previous  See Snapshots  Next  > 
Log in to create a playlist
The Morula and Blastocyst
The Morula and Blastocyst
3 Billion Base Pairs per Cell
3 Billion Base Pairs per Cell
Amnion and Germ Layers
Amnion and Germ Layers
Early Embryonic Development
Early Embryonic Development
Human Development
Human Development
Heart and Circulatory System
Heart and Circulatory System
Previous Set Previous Movie Next Set Next Movie
When does health begin? Find out now.
Tell your story. Create your own pregnancy calendar.


Add a Comment

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

Comment: