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Through the umbilical cord.

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13y ago

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What is natural passive?

Naturally-acquired passive immunity occurs when a fetus receives antibodies from its mother through the placenta. It also occurs when a baby receives antibodies through breastmilk.


What antibodies are passed from mother to baby during pregnancy and breastfeeding?

During pregnancy, antibodies such as IgG are passed from the mother to the baby through the placenta. During breastfeeding, antibodies such as IgA are passed from the mother to the baby through breast milk.


What substances pass between mother and embryo?

Nutrients such as glucose, amino acids, and oxygen pass from the mother to the embryo through the placenta. Waste products like carbon dioxide and urea pass from the embryo to the mother for elimination. Hormones and antibodies can also transfer between the two.


How are antibodies passed from a mother to her baby?

Antibodies are passed from a mother to her baby through the placenta during pregnancy and through breast milk after birth. This transfer of antibodies helps protect the baby from infections until their own immune system develops.


What happens in passive immunity?

A mother may transfer some IgG antibodies passively through the placenta to the fetus.


How can a new born baby be immune to measles?

A newborn baby can acquire immunity to measles if the mother has been previously vaccinated or had natural infection, passing on protective antibodies to the baby through the placenta. This is known as passive immunity and offers protection to the baby until they are old enough to receive their own measles vaccination.


How is the baby fed in the womb?

Nutrients pass through the placenta into the baby through the umbilical cord.


What specific type of acquired immunity that a fetus obtains from maternal antibodies that cross the placenta is called?

Passive immunity because the antibodies pass from mother to fetus.


How is the foetus supplied with oxygen and food in the uterus?

The fetus is supplied with oxygen and nutrients through the placenta, which is connected to the mother's uterine wall. The mother's blood passes through the placenta, allowing oxygen and nutrients to pass from the mother's bloodstream to the fetus. Waste products from the fetus also pass through the placenta into the mother's bloodstream for elimination.


What way does blood normally pass across the placenta?

blood does not pass across the placenta


What harmful substance can pass through the placenta to the foetus?

Ellicit drugs, alcohol and nicotine.


What two important substances pass from the mother through the placenta to the embryo?

Oxygen and nutrients, such as glucose and amino acids, pass from the mother through the placenta to the embryo. These substances are vital for the growth and development of the baby during pregnancy.