In Fetal Circulation, Most Blood Is Shunted Away from the Lungs

question 58

Multiple Choice

In fetal circulation, most blood is shunted away from the lungs. Why is this the case?

• A) The lungs have their own circulation.
• B) The lungs don't need any blood.
• C) The lungs do not form until right before birth.
• D) The fetus receives oxygen at the placenta, and the lungs are not yet fully functional.

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Definitions:

Substitute for Wheat

A comparable alternative to wheat, such as barley, rice, or corn, used in various food products or for feed.

Invisible Hand Principle

A metaphor described by Adam Smith to illustrate how individuals pursuing their own self-interest can benefit society overall, as if guided by an unseen hand.

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The process of distributing available resources among various competing needs and uses to achieve desired objectives and outcomes.

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The action of working towards one's personal advantage, often considered a driving force behind economic decisions.