Exam 28: Pregnancy and Human Development

Which of the following is true in reference to what may pass through the placental barriers?

The decidua basalis is _ .

Which of the following is not a germ layer?

Which body system of a pregnant woman undergoes the most dramatic physiological changes during pregnancy?

What destroys the sperm receptors on the surface of the oocyte?

The embryonic stage lasts until the end of the eighth week.

Briefly describe the events leading to the implantation of the blastocyst in the uterus, including how it is nourished.

The period from fertilization through week eight is called the embryonic period.

Which of the following events does not occur during the first 8 weeks of development?

The correct sequence of preembryonic structures is .

Briefly describe the physiological changes occurring in the mother during pregnancy.

Hormones concerned with events of lactation include .

A zygote is usually formed within the uterus.

Figure 28.2Using Figure 28.2, match the following: -Which cells invade the endometrium, digesting the uterine cells they contact, so that implantation of the blastocyst can occur?

Muscle tissue is formed by the .

Milk ejection or letdown reflex is stimulated by which of the following hormones associated with pregnancy?

A 19- year- old, single, sexually active college student, who has not used birth control on a regular basis, is in her first trimester of pregnancy. She is at the OB/GYN clinic for her first prenatal visit. In assessing her nutrition, the nurse discovers that the patient drinks heavily on a regular basis. She also states she does not like milk. What information should the nurse give the patient regarding nutrition?

Surfactant production in premature infants is rarely a factor in providing normal respiratory activity.

Implantation begins six to seven days after ovulation.

Figure 28.2Using Figure 28.2, match the following: -The part of the endometrium that surrounds the uterine cavity face of the implanted embryo.