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umbilical cord
Значение термина umbilical cord в knolik
umbilical cord - umbilical cord
umbilical cord - Stalk projecting from ventral surface of embryo of placental mammals, connecting it to placenta. Consists mainly of the mesoderm and blood-vessels of allantois, containing also part or all of the cavities of yolk-sac and allantois. Cord is surrounded by amniotic cavity. Usually breaks or is broken through at birth.
Рядом со словом umbilical cord в knolik
| umbel | В начало буква "" буквосочетание "" | undifferentiated |
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