Movie TheaterThe Embryonic Period |
| Buy NowFrom The Biology of Prenatal Development. |
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Script: During the first 8 weeks following fertilization, the developing human is called an embryo, which means "growing within." This time, called the embryonic period, is characterized by the formation of most major body systems. |
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All ages referenced to fertilization, not last menstrual period.
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The Embryonic Period
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End of Embryonic Period
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Kidneys Produce Urine
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Eyelid Fusion
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Breathing Motions
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4D Ultrasound
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