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15 Cards in this Set
- Front
- Back
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monozygotic twins arise from |
a single zygote |
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dizygotic twins arise from |
two separate zygotes |
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what are the two types of twins |
dizygotic and monozygotic twins |
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what results from union of two sperm and two ova |
dizygotic twins |
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Which twins can be different sexes ,different genetic make up and ALWAYS HAVE SEPARATE PLACENTAS |
dizygotic twins |
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twins that result from union of one sperm and one ova |
monozygotic |
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when is twins growth similar to singletons and when isn't it |
its similar up to 30 weeks after 30 weeks twins growth decreases when compared to singletons |
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what are monozygotic twins considered at days 0-4
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dichorionic amniotic |
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what are monozygotic twins considered at days 4-8 |
monochorionic diamniotic |
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most common type of monozygotic twins |
monochorionic daimniotic |
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what are monozygotic twins considered at days8-13 |
monochorionic monoamniotic |
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what are monozygotic twins considered at days after day 13 |
conjoined twins |
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what does monochorionic mono amniotic for the placenta |
only one placenta
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what does monochorionic diamniotic for the placenta |
only one placenta |
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what does diachronic diamniotic mean for the placenta |
2 placentas |
