quiz 2

Question 1

An immature egg is called an:

Select one:

a. ovum.
b. zygote.
c. oocyte.
d. follicle.

Answer 1

c. oocyte.

Question 2

What is the corpus luteum?

Select one:

a. The by-product of the release of progesterone
b. The thickened inner lining of the uterine wall
c. A hormone that is excreted throughout the ovarian cycle
d. Remnants of the follicle after the egg has been released

Answer 2

d. Remnants of the follicle after the egg has been released.

Question 3

The corpus luteum continues to secrete hormones to support pregnancy for:

Select one:

a. 28 days.
b. 90 days.
c. 20 weeks.
d. 40 weeks.

Answer 3

b. 90 days.

Question 4

Fertilization of an egg usually occurs in the:

Select one:

a. ovary.
b. uterus.
c. infundibulum.
d. fallopian tube.

Answer 4

d. fallopian tube

Question 5

The dome-shaped top of the uterus is called the:

Select one:

a. os.
b. body.
c. fundus.
d. cervix.

Answer 5

c. fundus.

Question 6

The ____________of the uterus is composed of three layers of muscle fibers that contract and help expel the fetus during childbirth.

Select one:

a. cervix
b. endometrium
c. myometrium
d. perimetrium

Answer 6

c. myometrium

Question 7

The egg is referred to as a blastocyst when:

Select one:

a. it becomes fertilized with sperm in the lower part of the fallopian tube.
b. the placenta has fully formed and has attached to the superior part of the uterus.
c. the amniotic sac and placenta begin to differentiate into their specialized duties.
d. it has been fertilized and enters the uterus and begins absorbing uterine fluid through the cell membrane.

Answer 7

d. it has been fertilized and enters the uterus and begins absorbing uterine fluid through the cell membrane.

Question 8

Human chorionic gonadotropin hormone sends signals to the corpus luteum, which in turn:

Select one:

a. produces cells that clump together and ultimately form the main tissues of the placenta.
b. produces hormones designed to support the pregnancy until the placenta has developed.
c. facilitates transition of the blastocyst into an embryo and causes further maturation of the placenta.
d. causes the developing placenta to produce projections that tap into the external tissue of the blastocyst.

Answer 8

b. produces hormones designed to support the pregnancy until the placenta has developed.

Question 9

Which of the following is NOT a function of the placenta?

Select one:

a. Synthesis of glycogen and cholesterol
b. Fetal protection against all harmful substances
c. Antibody production that protects the fetus
d. Excretion of wastes in the maternal circulation

Answer 9

b. Fetal protection against all harmful substances

Question 10

Which of the following statements regarding the umbilical cord is correct?

Select one:

a. The placenta receives arteriovenous blood from the umbilical arteries.
b. The umbilical cord is composed of two large veins and one small artery.
c. The umbilical vein carries oxygenated blood from the placenta to the fetus.
d. The fetus receives the majority of its oxygen supply from the umbilical arteries.

Answer 10

c. The umbilical vein carries oxygenated blood from the placenta to the fetus.

Question 11

Which of the following statements regarding the amniotic sac and fluid is correct?

Select one:

a. In the latter stages of pregnancy, the fetus swallows amniotic fluid and passes wastes out into the fluid.
b. The volume of amniotic fluid reaches about 500 mL by the end of pregnancy and nourishes the fetus.
c. Amniotic fluid serves no real physiologic purpose and the fetus could easily survive in utero without it.
d. The amniotic sac is composed of a tough, fibrous membrane that generally does not rupture until birth.

Answer 11

a. In the latter stages of pregnancy, the fetus swallows amniotic fluid and passes wastes out into the fluid.

Question 12

Unlike the prenatal period, the gestational period:

Select one:

a. begins at conception.
b. only last about 2 weeks.
c. usually takes 42 weeks.
d. is 38 weeks in duration.

Answer 12

d. is 38 weeks in duration.

Question 13

The uterine fundus is measured:

Select one:

a. horizontally from one side of the uterus to the other side.
b. vertically from the top of the pubic bone to the top of the fundus.
c. from just below the umbilicus to the inferior part of the sternum.
d. vertically from the top of the fundus to just below the umbilicus.

Answer 13

b. vertically from the top of the pubic bone to the top of the fundus.

Question 14

Which of the following statements regarding uterine fundus measurement is correct?

Select one:

a. Measurement of the fundus in centimeters corresponds to the number of gestational weeks.
b. If the fundus is longer than expected, it could indicate uterine growth problems.
c. A shorter than expected uterine fundus measurement is most suggestive of a breech position.
d. If the fundus measures 36 cm, the woman is between 32 and 34 weeks pregnant.

Answer 14

a. Measurement of the fundus in centimeters corresponds to the number of gestational weeks.

Question 15

In addition to meeting the metabolic needs of the developing fetus, the mother’s blood supply increases significantly in order to perfuse her own organs, especially the:

Select one:

a. heart and lungs.
b. uterus and kidneys.
c. liver and pancreas.
d. central nervous system.

Answer 15

b. uterus and kidneys.

Question 16

A woman who does not take prenatal vitamins during the course of her pregnancy is at greatest risk for:

Select one:

a. anemia.
b. leukopenia.
c. post-term labor.
d. abnormal bleeding.

Answer 16

a. anemia.

Question 17

Electrocardiogram changes that can occur during pregnancy include:

Select one:

a. tall, peaked T waves.
b. a right axis deviation.
c. a slight axis deviation.
d. high-voltage QRS complexes.

Answer 17

c. a slight axis deviation.

Question 18

If a woman’s prepregnancy resting heart rate is 70 beats per minute, you would expect her heart rate to range between ____ and ____ at term.

Select one:

a. 75, 85
b. 85, 90
c. 90, 100
d. 100, 110

Answer 18

b. 85, 90

Question 19

Systolic and diastolic blood pressure decrease until approximately ___ weeks’ gestation.

Select one:

a. 18
b. 24
c. 28
d. 34

Answer 19

d. 24

Question 20

Which of the following changes occurs in the respiratory system of a pregnant woman?

Select one:

a. Progesterone increases the threshold of the medullary respiratory center to carbon dioxide.
b. Minute ventilation increases by as much as 50%, which causes the PaCO2 to drop by about 5 mm Hg.
c. Oxygen consumption decreases by approximately 20%, causing a 40% decrease in tidal volume.
d. An increase in blood bicarbonate levels causes a slight decrease in the pH level of the blood.

Answer 20

b. Minute ventilation increases by as much as 50%, which causes the PaCO2 to drop by about 5 mm Hg.

Question 21

At term, displacement of the diaphragm by the uterus causes aNo:

Select one:

a. decrease in expiratory reserve volume.
b. increase in functional reserve capacity.
c. decrease in inspiratory reserve volume. Incorrect
d. marked increase in residual volume.

Answer 21

a. decrease in expiratory reserve volume.

Question 22

By the end of the third week after conception, all of the following processes occur, EXCEPT:

Select one:

a. the embryo is officially referred to as the fetus.
b. the embryonic process of forming specialized body systems.
c. the appearance of rudimentary functions of various body systems.
d. the woman has missed her menstrual period and suspects pregnancy.

Answer 22

a. the embryo is officially referred to as the fetus.

Question 23

All of the following processes take place in the uterus, EXCEPT:

Select one:

a. fertilization.
b. implantation.
c. the act of labor.
d. fetal development.

Answer 23

a. fertilization.