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NURS 611 Exam 4 Questions & Answers (test-bank) verified guide, Answers explained - Maryville University Of St. Louis.

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NURS 611 (NURS611)

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nurs 611 exam 4
nurs 611 exam 4 questions answers
the initial reproductive structures of the male and female embryos appear the same until which week of gestation
chapter 24 structure and function

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NURS 611 Exam 4 Questions & Answers
Chapter 24: Structure and Function of the Reproductive
Systems MULTIPLE CHOICE

1. The initial reproductive structures of the male and female embryos appear
the same until which week of gestation?
a. Third c. Twentieth
b. Eighth d. Thirtieth

ANS: B
Between 6 and 7 weeks’ gestation, the male embryo differentiates under the
influence of testes-determining factor (TDF). In the absence of testosterone,
a loss of the wolffian system occurs and the two gonads develop into ovaries
at 6 to 8 weeks’ gestation.

2. The absence of which major hormone is a determinant of sexual
differentiation (wolffian system) in utero?
a. Estrogen c. Growth hormone
b. Progesterone d. Testosterone

ANS: D
In the absence of testosterone, a loss of the wolffian system occurs and the
two gonads develop into ovaries at 6 to 8 weeks’ gestation. Between 6 and 7
weeks’ gestation, the male embryo differentiates under the influence of TDF.
The presence of estrogen is a determinating factor. None of the other
options function as a major determinant to sexual differentiation in utero.

3. Which gland produces the associated hormones that are found in high
levels in a female fetus?

a) Posterior pituitary excretes gonadotropin-releasing hormone (GnRH)
and luteinizing hormone (LH).

b) Hypothalamus excretes luteinizing hormone (LH) and gonadotropin-
releasing hormone (GnRH).

c) Anterior pituitaryfollicle-stimulating hormone (FSH) and luteinizing
hormone (LH).
d) Hypothalamus excretes gonadotropin-releasing hormone (GnRH) and
follicle-stimulating hormone (FSH).

,ANS: C
In the female fetus, the anterior pituitary excretes high levels of two
gonadotropins—FSH and LH. The other sequences are not correct.

4. Which hormone is linked to an increase in appetite during puberty?

a. Inhibin c. Activin
b. Leptin d. Follistatin

ANS: B

Sensitivity to leptin, which regulates appetite and energy metabolism,
increases during puberty; in theory, the adolescent consumes more calories
to meet the caloric needs of the pubertal growth spurt. The percent of body
fat and leptin levels in girls continue to increase, whereas muscle mass
increases in boys. No apparent link exists between increased appetite during
puberty and any of the other options.

5. The Skene glands are located on either side of which structure?

a. Introitus c. Clitoris
b. Urinary meatus d. Vestibule

ANS: B
The ducts of the Skene glands (also called the lesser vestibular or
paraurethral glands) are related only to the urinary meatus.

6. What is the function of the mucus secreted by the Bartholin glands?

a) Enhancement of the motility of sperm

b) Lubrication of the urinary meatus and vestibule

c) Maintenance of an acid-base balance to discourage proliferation of
pathogenic bacteria

d) Enhancement of the size of the penis during intercourse

ANS: A
In response to sexual stimulation, the Bartholin glands secrete mucus that
serves only to lubricate the inner labial surfaces, as well as to enhance the
viability and motility of sperm.

,7. Which change is a result of puberty and defends the vagina from
infection?

a) The pH stabilizes between 7 and 8.

b) A thin squamous epithelial lining develops.

c) V aginal pH becomes more acidic.

d) Estrogen levels are low.

ANS: C
At puberty, the pH becomes more acidic (4 to 5) and the squamous epithelial
lining thickens. These changes are maintained until menopause (cessation of
menstruation), at which time the pH rises again to more alkaline levels and
the epithelium thins out. Therefore protection from infection is greatest
during the years when a woman is most likely to be sexually active. Estrogen
does not play a role in infection protection.

8. What happens to the vagina’s lining at puberty?

a) It becomes thinner. c. It assumes a neutral pH.
b) It becomes thicker. d. It undergoes atrophy.

ANS: B

Before puberty, vaginal pH is approximately 7 (neutral) and the vaginal
epithelium is thin. At puberty, the pH becomes more acidic (4 to 5) and the
squamous epithelial lining thickens. Cell atrophy is not associated with
puberty.

9. Which structure is lined with columnar epithelial cells?
a. Perimetrium c. Myometrium

b. Endocervical canal d. Vagina

ANS: B
Of the available options, only the endocervical canal does not have an
endometrial layer; rather, the layer is lined with columnar epithelial cells.

10. Where is the usual site of fertilization of an ovum?
a) Trumpet end of the fallopian tubes c. Ampulla of the fallopian
tubes
b) Fimbriae of the fallopian tubes d. Os of the fallopian tubes

, ANS: C
The ampulla, or distal third, of the fallopian tube is the usual site of
fertilization

11. Where is the usual site of cervical dysplasia or cancer in situ?
a) Squamous epithelium of the cervix meets the cuboidal epithelium of
the vagina.

b) Columnar epithelium of the cervix meets the squamous epithelium
of the uterus.

c) Squamous epithelium of the cervix meets the columnar epithelium
of the uterus.

d) Columnar epithelium of the cervix meets the squamous epithelium
of the vagina.

ANS: D
The point at which the columnar epithelium of the cervix meets the
squamous epithelium of the vagina is called the transformation zone or the
squamous-columnar junction. The transformation zone is especially
susceptible to the oncogenic human papillomavirus (HPV), which leads to
cervical dysplasia and, ultimately, cervical cancer; these are the cells
sampled during a Papanicolaou (Pap) test.

12. Having ejected a mature ovum, the ovarian follicle develops into a(n):

a) Atretic follicle c. Corpus luteum
b) Thecal follicle d. Functional scar

ANS: C
Having ejected a mature ovum, the only resulting structure is the corpus
luteum.

13. The mucosal secretions of the cervix secrete which immunoglobulin?

a. IgA c. IgG

b. IgE d. IgM

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