Chapter 22 - Pregnancy

Question 1

Human chorionic gonadotropin (hCG) is
produced by which of the following?

(A) Ectoderm
(B) Cytotrophoblast
(C) Decidua basalis
(D) Syncytiotrophoblast
(E) Mesoderm

Answer 1

D. Syncytiotrophoblast

The syncytiotrophoblast produces hCG.

Question 2

A reliable index of fetal–placenta function
is maternal urinary level of

(A) estrone
(B) human placental lactogen (hPL)
(C) prolactin (PRL)
(D) progesterone
(E) estriol

Answer 2

E. Estriol

Maternal urinary levels of estriol have long been recognized as a reliable index of
fetal–placental function because estriol production is dependent on a normal functioning
fetal adrenal cortex, fetal liver, and placenta.

Question 3

The first fetal movements occur in which
of the following trimesters?

(A) First trimester
(B) Second trimester
(C) Third trimester

Answer 3

B. Second trimester

The first fetal movements occur in the second trimester.

Question 4

The Doppler fetal heart rate is first audible
in which of the following trimesters?

(A) First trimester
(B) Second trimester
(C) Third trimester

Answer 4

A. First Trimester

The fetal heart rate is first audible in the first trimester at around week 12.

Question 5

The lungs become capable of respiration
in which of the following trimesters?

(A) First trimester
(B) Second trimester
(C) Third trimester

Answer 5

B. Second trimester

The lungs become capable of respiration at weeks 25–27 in the second trimester.

Question 6

Which of the following structures
produces progesterone late in pregnancy?

(A) Placenta
(B) Corpus luteum
(C) Syncytiotrophoblast
(D) Fetal adenohypophysis
(E) Maternal liver

Answer 6

A. Placenta

Progesterone is a steroid hormone that is produced by the placenta up until birth. The
corpus luteum also produces progesterone, but only until week 8 of pregnancy.