Skip Navigation

Image Gallery

Yolk Sac and Vitelline Vessels

5 weeks, 6 days


Note:

According to some experts, the preferred name for "yolk sac" is "umbilical vesicle."

Label Key:

  • 1. vitelline vessels
  • 2. yolk sac
Buy NowFrom The Biology of Prenatal Development. All ages referenced to fertilization, not last menstrual period.
Yolk Sac and Vitelline Vessels
Yolk Sac and Vitelline Vessels
Yolk Sac
Yolk Sac
The Beating Heart
The Beating Heart
Hand Plate and Vital Organs
Hand Plate and Vital Organs
Left Hand Plate and Wrist
Left Hand Plate and Wrist
Brain and Umbilical Cord
Brain and Umbilical Cord
Previous Set Previous Picture Next Set Next Picture
Tell your story. Create your own pregnancy calendar.
When does health begin? Find out now.


Add a Comment

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

Comment: