Exam 3: Prenatal Development

Organize the developmental stages in the correct order.

The nurse explains that the hormone responsible for converting the endometrium into decidual cells for implantation is:

The nurse explains that prior to fertilization each cell is reduced from 46 chromosomes to 23 chromosomes. This is referred to as the ____________________ number.

In fetal circulation, the purpose of the ductus venosus is to bypass the:

The embryonic membrane that contains fingerlike projections on its surface that attach to the uterine wall is the:

The nurse clarifies that the functions of the amniotic fluid are: Select all that apply.

While teaching a class on fetal development to a class of high school students, the nurse emphasizes that the fetus develops from primary germ layers, which are: Select all that apply.

When preparing to teach a class about prenatal development, the nurse would include information about folic acid supplementation because it is known to prevent:

The nurse explains that although the foramen ovale closes functionally about 2 hours after birth, it can be reopened by:

The nurse explains that twins are frequently below average birth weight because of inadequate:

The nurse informs a class of expectant parents that the fetus is first considered viable at the age of:

A woman who is 25 weeks pregnant asks the nurse what her fetus looks like. The nurse bases her response on the understanding that one physical characteristic present in a 25-week-old fetus is:

The total number of chromosomes contained in a mature sperm or ovum is:

Using a diagram, the nurse points out the common site for fertilization, which is the:

At what point in prenatal development do the lungs begin to produce surfactant?

The component of development that programs the genetic code into the nucleus of the cell is ____________.

During an ultrasound, two amnions and two placentas are observed. The nurse is aware that this pregnancy will result in:

A pregnant woman is having an ultrasound because there is some concern about the implantation of the zygote. The nurse explains that the usual location for implantation is the:

The nurse explains that if one parent has a dominant gene and the other parent does not, the percentage of children carrying the dominant gene will be:

When the client asks when her baby's heart will begin to pump blood, the nurse replies that blood circulation begins at the: