3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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Quiz: Reproductive Physiology
Due Apr 5 at 11:59pm
Points 50
Questions 50
Time Limit 100 Minutes
Instructions
Attempt History
Attempt Time Score
LATEST Attempt 1 22 minutes 50 out of 50
Correct answers are hidden.
Score for this quiz: 50 out of 50
Submitted Mar 18 at 8:52am
This attempt took 22 minutes.
Question 1
1 / 1 pts
a. ABCG5
b. SRY
c. Inhibin
d. CCK
Question 2
1 / 1 pts
The quiz:
Covers the Learn material from Module 8: Week 8.
Contains 50 multiple-choice, true/false, and multiple answer questions.
Is limited to 100 minutes.
Allows 1 attempt.
Is worth 50 points.
Submit this assignment by 11:59 p.m. (ET) on Friday of Module 8: Week 8.
Which of these genes on the Y chromosome encodes the testes-determining factor?
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3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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True
False
Question 3
1 / 1 pts
True
False
Question 4
1 / 1 pts
True
False
Question 5
1 / 1 pts
True
False
The symptoms of menopause are caused by the loss of the ovarian source of estrogen and
include thinning of the vaginal epithelium, decreased vaginal secretions, decreased breast
mass, accelerated bone loss, vascular instability (“hot ashes”), and emotional lability.
Higher-dose preparations of estrogen and progesterone inhibit ovulation and may interfere with
implantation; these preparations can be used as postcoital contraceptives, or “morning after”
pills.
As long as lactation continues, there is suppression of ovulation because prolactin inhibits
GnRH secretion by the hypothalamus and FSH and LH secretion by the anterior pituitary.
In the third stage of labor,uterine contractions originating at the fundus,sweep downward and
move the head of the fetus toward the cervix and progressively widen and thin the cervix.
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
3/14
Question 6
1 / 1 pts
True
False
Question 7
1 / 1 pts
a. Leydig cells
b. Sertoli cells
c. Theca cells
d. None of these
Question 8
1 / 1 pts
a. Plasma testosterone is more active than intratesticular testosterone
b. Androgen-binding protein concentrates testosterone in the testes
c. The blood-testes barrier prevents the export of testicular testosterone
d. Adrenal androgens diffuse into tissues more readily than intratesticular testosterone
Question 9
1 / 1 pts
a. Oxytocin
b. Estrogen
c. Progesterone
d. Prolactin
Near term, the fetal hypothalamic-pituitary-adrenal axis is activated and the fetal adrenal cortex
produces signicant amounts of cortisolwhich increases the estrogen/progesterone ratio and
increases the sensitivity of the uterus to contractile stimuli.
Anti-mullerian factor is the protein that is responsible for the degeneration of the mullerian duct
in males - it is secreted by;
The concentration of testosterone in the testes is signicantly higher than the plasma
concentration because;
Which of these hormones is responsible for milk ejection from the breast in a lactating woman?
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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Question 10
1 / 1 pts
a. GnRH
b. TSH
c. Somatostatin
d. Dopamine
Question 11
1 / 1 pts
a. Labia majora - scrotum
b. Ovaries - testes
c. Clitoris - glans penis
d. Granulosa cells - Leydig cells
Question 12
1 / 1 pts
a. Inhibin
b. Progesterone
c. Estriol
d. human chorionic gonadotropin
Question 13
1 / 1 pts
a. FSH/LH
b. LH/Inhibin
c. hCG/LH
d. Activin/FSH
The hypothalamic inhibitor of prolatin secretion is;
Which of these pairs is not correct (with respect to female and male homologues);
Which of these is not a placental hormone;
Leydig cells can be stimulated to produce testosterone by which pair of hormones;
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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Question 14
1 / 1 pts
a. Vas deferens
b. Prostate gland
c. Penis
d. Scrotum
Question 15
1 / 1 pts
a. 5-alpha reductase
b. Aromatase
c. 17-beta hydroxysteroid dehydrogenase
d. Desmolase
Question 16
1 / 1 pts
a. They have testes
b. The levels of testosterone and DHT are low
c. They have a short vagina
d. They are genetic males
Question 17
1 / 1 pts
a. Spermatogonia
b. Primary spermatocyte
c. Spermatozoa
d. Secondary spermatocyte
Question 18
1 / 1 pts
The differentiation of which of these structures is not mediated by DHT?
This enzyme is responsible for the conversion of testosterone to estradiol;
Which of these is not true about patients with androgen insensitivity syndrome?
Which term describes the end-product of spermiogenesis?
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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a. Seminal vesicles
b. Semniferous tubules
c. Glans of the penis
d. Prostate gland
Question 19
1 / 1 pts
a. Testosterone
b. DHT
c. Estrogen
d. Testosterone
Question 20
1 / 1 pts
a. It has a thermogenic effect
b. It has a glucocorticoid effect
c. It has anti-osteoporotic effects
d. It raises the threshold for uterine muscle stimulation and contraction
Question 21
1 / 1 pts
True
False
Question 22
1 / 1 pts
a. hypothalamic dysfunction
Which of these structures is responsible for the production of the prostaglandins found in
semen?
Dr Kalu's male pattern baldness is likely the direct result of this hormone's activity;
Which of these statements does not describe the effect of progesterone;
Females do not produce testosterone and males do not produce estrogens.
In which of the following causes of delayed puberty would pulsatile administration of
gonadotropin-releasing hormone (GnRH) be effective:
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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b. Leydig cell dysfunction
c. androgen insensitivity syndrome
d. None of these
Question 23
1 / 1 pts
a. androstenedione to testosterone
b. cholesterol to pregnenolone
c.. testosterone to dihydrotestosterone
d. All of these
Question 24
1 / 1 pts
a. 17α-hydroxylase
b. 21β-hydroxylase
c. cholesterol desmolase
d. Aldosterone synthase
Question 25
1 / 1 pts
a. LH
b. human chorionic gonadotropin (HCG)
c. estradiol
d. progesterone
Question 26
1 / 1 pts
Which step in testosterone synthesis is activated by luteinizing hormone (LH):
Which steroidogenic enzyme is not present in the gonads:
Which hormone maintains the corpus luteum of pregnancy:
A 16-year-old, seemingly normal female is diagnosed with androgen insensitivity disorder. She
has never had a menstrual cycle and is found to have a blind-ending vagina; no uterus, cervix, or
ovaries; a 46 XY genotype; and intra-abdominal testes. Her serum testosterone is elevated.
Which of the following characteristics is caused by lack of androgen receptors?
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
8/14
Elevated serum testosterone
46 XY Genotype
Testes
Lack of Uterus and Cervix
Lack of menstrual cycles
Question 27
1 / 1 pts
a. days 1–4
b. days 5–14
c. days 15–20
d. days 21–25
e. days 26–28
Question 28
1 / 1 pts
a. days 1–4
b. days 5–14
c. days 15–20
d. days 21–25
e. days 26–28
Question 29
1 / 1 pts
a. testes
b. muscle mass
c. male hair distribution
During which period of the menstrual cycle does the dominant follicle produce most of its
estrogen:
During which period of the menstrual cycle does the corpus luteum regress (if fertilization does
not occur):
In a genetic male with deciency of 5α-reductase, which of the following masculine features is
not present:
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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d. epididymis
e. deepening of the voice?
Question 30
1 / 1 pts
a. Male phenotype
b. testes
c. increased expression of androgen receptors
d. vagina
Question 31
1 / 1 pts
a. Cholesterol → pregnenolone
b. androstenedione → testosterone
c. testosterone → 17β-estradiol
d. All of these
Question 32
1 / 1 pts
Dopamine receptor agonists
Increased TRH
Pregnancy
Prolactinoma
Question 33
1 / 1 pts
Presence of testes or ovaries
Presence or absence of a penis or vagina
XX or XY chromosomes
Which of the following is present in androgen insensitivity disorder(check all that apply)?
Which step in ovarian estradiol synthesis is stimulated by FSH?
Which of these factors is least likely to increase prolactin secretion?
Which of these is the determinant of a person's genetic sex?
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
10/14
Anti-mullerian hormone
Question 34
1 / 1 pts
Leydig cells
Thecal cells
Sertoli cells
Granulosa cells
Question 35
1 / 1 pts
True
False
Question 36
1 / 1 pts
True
False
Question 37
1 / 1 pts
True
False
Question 38
1 / 1 pts
Growth spurt
Which cell type synthesizes the anti-mullerian hormone during embryogenesis?
If a gonadal female is exposed to high levels of androgens in utero (e.g., from excessive
production by the adrenal cortex) when the external genitalia are differentiating, then a male
phenotype results.
The FSH to LH ratio is high during senescence in females just like in childhood.
The administration of a long-acting(non-pulsatile) GnRH analogue to a patient with GnRH
deciency will promote the onset of puberty.
The earliest observable sign of puberty in girls is;
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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Menarche
Pubic hair
Breast budding
Question 39
1 / 1 pts
Providing nutrients to the differentiating sperm cells
Producing the blood-testes barrier
Synthesizing testosterone
Secreting aqueous uid into the lumen of the seminiferous tubules, which helps to transport sperm through
the tubules into the epididymis.
Question 40
1 / 1 pts
Fribrinogen
Prostaglandins
Citrate
Fructose
Calcium
Question 41
1 / 1 pts
True
False
Question 42
1 / 1 pts
Which is not a role the sertoli cells play in spermatogenesis?
The seminal vesicles secrete a uid rich in; Choose all that apply
Capacitation is a process in which inhibitory factors in the seminal uid are washed free,
cholesterol is withdrawn from the sperm membrane, and calcium inux into the sperm
increases their motility, and the motion of the sperm becomes "whiplike."
The enzyme that converts testosterone to dihydrotestosterone is called;
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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Sulfatase
Aromatase
17β-hydroxysteroid dehydrogenase
5α-reductase
Question 43
1 / 1 pts
True
False
Question 44
1 / 1 pts
True
False
Question 45
1 / 1 pts
Differentiation of the penis
Enlargement of the penis at puberty
Male hair distribution and male pattern baldness
Growth of the prostate
Deepening of the voice at puberty
Question 46
1 / 1 pts
Cortex
LH stimulates the Leydig cells to synthesize testosterone by increasing the activity of
cholesterol desmolase.
The Sertoli cells synthesize their own feedback inhibitor(inhibin) that serves as an "indicator" of
the spermatogenic activity of the testes by inhibiting FSH secretion by the anterior pituitary
gland.
Which of these physiologic effects is/are mediated by dihydrotestosterone? Choose all that
apply;
In which zone of the ovaries are the oocytes housed?
3/20/24, 1:01 PM
Quiz: Reproductive Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858845
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Medulla
Hilum
Zona glomerulosa
Question 47
1 / 1 pts
Ture
False
Question 48
1 / 1 pts
Raising of uterine threshold to contractile stimuli
Stimulation of prolactin secretion
Blocking the action of prolactin on the breast
Decreasing LDL cholesterol Anti-osteoporosis
Question 49
1 / 1 pts
Maintenance of secretory activity of uterus during luteal phase
Negative feedback effects on FSH and LH secretion
Maintenance of pregnancy
Promoting milk let-down from breasts during lactation
Question 50
1 / 1 pts
True
False
Quiz Score: 50 out of 50
LH stimulates aromatase in the granulosa cells, the last step in the synthesis of 17β-estradiol.
Which of these is not true about the physiologic effects of estrogen?
Which of these is/are true about the physiologic effects of progesterone? Choose all that apply;
In the vagina, estrogen stimulates proliferation of epithelial cells; progesterone stimulates
differentiation but inhibits proliferation of epithelial cells.
