In twin-twin transfusion syndrome, the donor twin's arterial blood flows into whom?

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Multiple Choice

In twin-twin transfusion syndrome, the donor twin's arterial blood flows into whom?

Explanation:
In twin-twin transfusion syndrome, arterial blood from the donor twin is shunted directly into the recipient twin’s venous system through placental arteriovenous connections. This unidirectional transfer drains the donor’s blood volume, causing hypovolemia and oligohydramnios, while the recipient becomes hypervolemic with polyhydramnios and may develop cardiac strain. The crucial idea is that the passage is from the donor’s arterial system into the recipient’s venous system via placental AV anastomoses, not from donor venous to recipient arterial, nor arterial to arterial, etc.

In twin-twin transfusion syndrome, arterial blood from the donor twin is shunted directly into the recipient twin’s venous system through placental arteriovenous connections. This unidirectional transfer drains the donor’s blood volume, causing hypovolemia and oligohydramnios, while the recipient becomes hypervolemic with polyhydramnios and may develop cardiac strain. The crucial idea is that the passage is from the donor’s arterial system into the recipient’s venous system via placental AV anastomoses, not from donor venous to recipient arterial, nor arterial to arterial, etc.

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