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The Endowment for Human Development
The Endowment for Human Development
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Left Shoulder and Upper Arm

11 weeks

From The Biology of Prenatal Development.Buy Now

Note:

The muscles and nerves around the shoulder arrived some time ago! The collar bone is just beneath the surface and remains visible even as the skin continues to thicken.

Label Key:

1. collar bone (clavicle)
2. left axilla
3. neck
4. shoulder
5. left upper arm
6. left ear
All ages referenced to fertilization, not last menstrual period.
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Left Shoulder and Upper Arm
Left Shoulder and Upper Arm
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Sole of the Right Foot
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