Image GalleryTouching Thumbs |
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| Buy NowFrom The Biology of Prenatal Development. |
Note:One reason the thumb is unique among the fingers is the presence of only one joint instead of two.Label Key:
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| All ages referenced to fertilization, not last menstrual period. One month = 4 weeks. |
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Touching Thumbs
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Three-Month Fetus
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Fingertips of Right Hand
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Roof of the Mouth
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Meconium Release
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Right Hand Covering Face
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