Question 1
Janine is trying to quit smoking because she knows it can have multiple negative effects on the embryo and fetus. Explain how cigarette smoking can slow fetal growth, leading to low-birth-weight babies.
Question 2
Sarah's labor has just begun. She is in the hospital birthing room, where her partner, obstetrician, and two nurses are present, and contractions have begun. What hormone likely initiated uterine contractions for Sarah's labor?