Image Gallery
The Lower Embryo |
4 weeks, 6 days |
| Buy NowFrom The Biology of Prenatal Development. |
Note:The amnion is particularly well seen here.Label Key:
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| All ages referenced to fertilization, not last menstrual period. |
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The Lower Embryo
( 4 weeks, 6 days) |
The Lower Limbs and Back
( 5 weeks, 2 days) |
Brain and Spinal Cord
( 5 weeks, 2 days) |
Heart and Brain
( 5 weeks, 6 days) |
Head and Heart
( 5 weeks, 6 days) |
Close-up of Heart and Liver
( 5 weeks, 6 days) |
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