Exam 28: Pregnancy and Human Development

In fetal circulation, one way in which blood bypasses the nonaerated lungs is by way of the foramen ovale.

Estrogen and progesterone maintain the integrity of the uterine lining and prepare the mammary glands to secrete milk. Which of the following structures makes this possible during the first three months of pregnancy?

Freshly deposited sperm are not capable of penetrating an oocyte.

What embryonic structure is the structural base for the umbilical cord?

The patient is in her first trimester of pregnancy. She complains of feeling nauseated and has vomited on occasion. She tells the nurse that she did not have this with her first pregnancy. She asks the nurse, "What is causing this and when will it end?" How should the nurse respond?

Figure 28.1Using Figure 28.1, match the following: -Pancreas.

Figure 28.1Using Figure 28.1, match the following: -The act of giving birth is called .

Fertilization occurs while the egg is still in the ovarian follicle.

The placenta and its attached fetal membranes are collectively called the afterbirth.

The embryo is directly enclosed in and protected by the amnion.

Which of the choices below occurs if fertilization of the ovum occurs and implantation takes place?

Figure 28.1Using Figure 28.1, match the following: -Describe the events of the oocyte from sperm penetration to first cleavage.

Which of the following is not assessed as part of the Apgar score?

How are the metabolic needs of the implanted embryo provided for?

Figure 28.1Using Figure 28.1, match the following: -Esophagus.

Select the correct statement about fertilization.

Figure 28.2Using Figure 28.2, match the following: -The stage of development is the first in which all three germ layers of tissue are evident.

Derivatives of the endoderm include .

Derivatives of the mesoderm include _.

Figure 28.1Using Figure 28.1, match the following: -Liver.