Fetal Development

Prenatal development from zygote to birth: trimesters, placenta, umbilical cord, organ formation, and teratogens.

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Sample Questions

What You'll Be Asked

At 6 weeks after fertilization, an ultrasound shows a tiny developing human with a beating heart. What is the correct term for it at this stage?
At a prenatal visit, a clinician says a pregnancy is at 40 weeks. What is this count based on, and about how long ago was fertilization?
Besides exchanging gases and nutrients, the placenta makes hormones, such as progesterone, that help keep a pregnancy going.

12 more questions in the quiz. Your score and the right answers come at the end.

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