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The Endowment for Human Development
The Endowment for Human Development
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Male and Female Genitals

11 weeks, 3 days

From The Biology of Prenatal Development.Buy Now

Note:

Males and females can now be distinguished by their external genitalia.

Label Key:

1. fingertips of left hand
2. penis
3. left thigh
4. scrotum
5. right thigh
6. (subtle) line of midline fusion
7. labia
8. vaginal opening
All ages referenced to fertilization, not last menstrual period.
Umbilical Vein
Umbilical Vein
The Nose and Lips
The Nose and Lips
Male and Female Genitals
Male and Female Genitals
External Genitalia
External Genitalia
The Hands
The Hands
Touching Thumbs
Touching Thumbs
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