New York State Basic Emergency Medical Technician (EMT-B) Practice Exam

Which statement about the developing fetus is accurate?

1. Umbilical cord connects the fetus directly to the uterus

2. The after birth is another name for the amniotic sac

3. The fetus receives oxygen and nutrients from the placenta

4. The fetus develops inside the placenta

The correct answer is: The fetus receives oxygen and nutrients from the placenta

The statement regarding the fetus receiving oxygen and nutrients from the placenta is accurate because the placenta serves as the critical interface between the mother's blood supply and that of the developing fetus. It facilitates the exchange of oxygen, nutrients, and waste products through the mother's circulation, ensuring the fetus has what it needs for optimal growth and development. This biological process is crucial for the health of both the mother and the fetus throughout pregnancy. The umbilical cord connects the fetus to the placenta, not directly to the uterus, highlighting the specific role of the placenta as the site for nutrient and gas exchange. Additionally, the term "after birth" refers to the placenta and other membranes expelled following delivery, not the amniotic sac, which contains the amniotic fluid that protects the fetus. Lastly, the fetus does not develop inside the placenta; rather, it grows within the amniotic sac, surrounded by the protective amniotic fluid, while being nourished and supported by the placenta's functions.