28. Pregnancy and Human Development

Number the sequence of events that are responsible for initiating labor.

________Hypothalamus of the mother and fetus stimulate the placenta to secrete prostaglandins.

________Fetal cortisol levels increase and stimulate the placenta to release estrogen.

________Prostaglandins and oxytocin stimulate the uterus to contract.

________​​​​ Estrogen stimulates the myometrium to form oxytocin receptors.

Mark the following statements about the stages of labor as true or false. If a statement is false, correct it to make a true statement.

a. The dilation stage is the time from the onset of labor until the cervix is fully expanded.

Mark the following statements about the stages of labor as true or false. If a statement is false, correct it to make a true statement.

b. The placental stage is the time after delivery of the infant when the placenta and the attached fetal extraembryonic membranes are delivered.