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The Endowment for Human Development
The Endowment for Human Development
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The Collar Bone and Ear

7 weeks, 4 days

From The Biology of Prenatal Development.Buy Now

Note:

Bone formation (ossification) is underway. The collar bones and jaw bones lead the way.

Label Key:

1. head
2. right external ear
3. right side of face
4. neck
5. chest
6. collar bone (clavicle)
All ages referenced to fertilization, not last menstrual period.
Close-up of Umbilical Cord
Close-up of Umbilical Cord
Left Hand, Upper & Lower Jaw
Left Hand, Upper & Lower Jaw
The Collar Bone and Ear
The Collar Bone and Ear
Right Eye, Hand-Face Contact
Right Eye, Hand-Face Contact
Hands and Face
Hands and Face
Hands and Fingers
Hands and Fingers
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