Med Surg 102 Math Peds Practice Material

The total number of chromosomes contained in a mature sperm or ovum is:



a. 22.
b. 23.
c. 44.
d. 46.

ANS: B
Gametes (sex chromosomes) contain 23 chromosomes.

DIF: Cognitive Level: Knowledge REF: p. 32 OBJ: 2
TOP: Gametogenesis KEY: Nursing Process Step: N/A
MSC: NCLEX: Health Promotion and Maintenance: Growth and Development

2. A pregnant woman states, "My husband hopes I will give him a boy
because we have three girls." The nurse explains that:

a. the sex chromosome of the fertilized ovum determines the gender of the
child.
b. when the sperm and ovum are united, there is a 75% chance the child will
be a girl.
c. when the pH of the female reproductive tract is acidic, the child will be a
girl.
d. if a sperm carrying a Y chromosome fertilizes an ovum, then a boy is
produced.

ANS: D
When a Y-bearing sperm fertilizes an ovum, a male child is produced.

DIF: Cognitive Level: Comprehension REF: p. 33 OBJ: 3
TOP: Sex Determination KEY: Nursing Process Step: Implementation
MSC: NCLEX: Health Promotion and Maintenance: Growth and Development

3. Using a diagram, the nurse points out the most common site for
fertilization, which is the:

a. lower segment of the uterus.
b. outer third of the fallopian tube near the ovary.
c. upper portion of the uterus.
d. area of the fallopian tube farthest from the ovary.

ANS: B
Fertilization takes place in the outer third of the fallopian tube, which is
closest to the ovary.
DIF: Cognitive Level: Knowledge REF: pp. 33-34 OBJ: 3