Hall: Guyton and Hall Textbook of Medical Physiology, 12th Edition
Chapter 82: Pregnancy and Lactation
Test Bank
1. Which of the following blastocystic cells is responsible for invasion of the spiral arteries
to begin development of the chorionic villus?
A. Sertoli cells
B. Synciotrophoblast cells
C. Cytotrophoblast cells
D. Glomerulosa cells
2. What is the consequence of the lack of adequate chorionic gonadotropin after
fertilization?
A. Spontaneous abortion
B. Early labor
C. Delayed labor
D. Lack of ovulation
3. The structure in the fetus that shunts oxygenated blood from the right atrium to the left
atrium is:
A. Ductus arteriosus
B. Ductus venosus
C. Inferior vena cava
D. Foramen ovale
Questions 4 – 5: A 35 year old woman is admitted to the Labor and Delivery Suite at 4:30
am. Her amniotic membranes ruptured approximately 6 hrs earlier, but her contractions have
decreased from one every 3 min to 1 every 5-7 min. She is a primipara. Upon physical
examination she has a blood pressure of 140/85, pulse 100, sinus tachycardia rhythm. Her
temperature is 98.6 degrees. Laboratory studies revealed: serum glucose 135 mg/dL. BUN 10
mg/dL, serum creatinine 0.4 mg/dL, hematocrit is 38%, serum HgA1c 6.0 mg/dL. The fetal
heart rate is 120 bpm. The cervix is dilated to 3 cm. According to her previous records, she is
at 41 weeks gestation and she has gestational diabetes.
4. If the physician wants to increase the rate and strength of the contractions, which of the
following would he/she give the woman?
A. Oxytocin
B. Prostaglandin F2alpha
Test Bank
82-2
C. Angiotensin II
D. Endothelin-1
5. Since the woman has gestational diabetes, which of the following would the physician
expect?
A. A neonate that is small for gestational age
B. A neonate that has hypobilirubinemia
C. A neonate that is large for gestational age
D. A neonate that is hyperglycemic
The labor proceeds well and the woman delivers a baby girl after eight more hours.
6. Which of the following will cause an abortion?
A. Oxytocin
B. Prostaglandin F2alpha
C. Angiotensin II
D. Progesterone
7. Which of the following hormones is responsible for milk being expressed into the
mammary ducts of the breast when the woman nurses her baby?
A. Progesterone
B. Estradiol
C. Prolactin
D. Oxytocin
8. The hormone that is responsible for milk production is:
A. Estradiol
B. Prolactin
C. Oxytocin
D. Progesterone
9. The mechanism by which the zona pellucida becomes “hardened” following penetration
of a sperm cell is:
A. A reduction in estradiol
B. The proteins released from the acrosome of the sperm
C. An increase in intracellular calcium in the oocyte
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D. An increase in testosterone that affects the sperm
10. The fetus is incapable of producing which steroid:
A. Testosterone
B. Estradiol
C. Progesterone
D. Dehydroepiandrosterone sulfate