Reproductive system EXAM TWO

Question 1

Genetic variation is NOT enhanced through

  	fertilization.
  	crossing over events.
  	separation of homologous pairs in Metaphase I.
  	mutation.
  	mitosis.

Answer 1

Mitosis

Question 2

2 In response to parasympathetic stimulation,

  	fertilization is encouraged.
  	blood flow increases to the penis.
  	spermiogenesis is encouraged.
  	vessels in the penis constrict.
  	ejaculation occurs.

Answer 2

blood flow increases to the penis.

Question 3

3 The basic difference between spermatogenesis and oogenesis is that

spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only.
during spermatogenesis two more polar bodies are produced.
the mature ovum is haploid while the sperm is 2n.
the mature ovum is diploid while the sperm is 1n.
in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced.

Answer 3

in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced.

Question 4

4 The organ that makes estrogen and progesterone is the:

  	vestibular gland.
  	pineal gland.
  	vagina.
  	hypothalamus.
  	ovary.

Answer 4

ovary.

Question 5

5 The primary sex organ of the male is the

  	seminal vesicle.
  	penis.
  	testes.
  	prostate.
  	epididymis.

Answer 5

testes

Question 6

6 The reason why the testes are suspended in the scrotum is

to provide for a cooler temperature.
to create extra space for the sex organs.
to protect sperm from the immune system.
to place sperm storage sites nearer the penis.
to reduce the chance of infection from the enteric bacteria.

Answer 6

to provide for a cooler temperature.

Question 7

7 The sperm’s acrosome

  	has a high density of mitochondria.
  	contains nutrients.
  	beats so that the sperm can swim.
  	provides the blood-testis barrier.
  	contains enzymes.

Answer 7

contains enzymes.

Question 8

8 The surge in LH that occurs during the middle of the ovarian cycle triggers

  	FSH release.
  	ovulation.
  	uterine lining secretion directly.
  	activation of primordial follicles.
  	menstruation.

Answer 8

ovulation

Question 9

9 The usual site of fertilization is the

  	vulva.
  	uterus.
  	uterine tube.
  	vagina.
  	ovary.

Answer 9

uterine tube.

Question 10

10 The uterine layer which is shed with each monthly cycle is

  	the functional layer of endometrium.
  	myometrium.
  	tunica albuginea.
  	the basal layer of endometrium.
  	perimetrium.

Answer 10

the functional layer of endometrium.

Question 11

11 These cells located in between seminiferous tubules produce testosterone

  	follicle cells.
  	myometrial.
  	sustentacular.
  	interstitial.
  	thalamic.

Answer 11

interstitial

Question 12

12 Under which uterine phase does the functional layer of the endometrium start to rebuild?

  	Secretory
  	Menses
  	Ovulation
  	Proliferative
  	Preovulatory

Answer 12

Proliferative

Question 13

14 Which cell type is actually ovulated from the ovary?

  	Primary oocyte
  	Ovum
  	Oogonium
  	Secondary oocyte
  	Tertiary oocyte

Answer 13

Secondary oocyte

Question 14

16 Which is the most correct sequence of sperm flow in the male duct system?

Testes; ductus deferens; urethra; seminal vesicle
Seminiferous tubules; vas deferens; ejaculatory duct; ampulla; urethra
Seminiferous tubules; epididymis; vas deferens; ampulla; ejaculatory duct; urethra
Seminiferous tubules; prostatic urethra; vas deferens; ejaculatory duct; ampulla
Testes; epididymis; ductus deferens; urethra; seminal vesicle

Answer 14

Seminiferous tubules; epididymis; vas deferens; ampulla; ejaculatory duct; urethra

Question 15

17 Which male structure is homologous to the female’s clitoris?

  	Scrotum
  	Pubis
  	Penis
  	Prostate gland
  	Epididymis

Answer 15

Penis

Question 16

18 Which represents a correct cascade of reproductive hormones in males?

  	FSH; GnRH; testosterone; LH
  	FSH; GnRH; LH; testosterone
  	LH; GnRH; FSH; testosterone
  	GnRH; LH/FSH; testosterone + inhibin
  	FSH; LH; GnRH; testosterone

Answer 16

GnRH; LH/FSH; testosterone + inhibin

Question 17

19 Within the ovary, progesterone is produced by the

  	corpus albicans.
  	tertiary follicles.
  	corpus luteum.
  	primary follicles.
  	secondary follicles.

Answer 17

corpus luteum.

Question 18

20 Sperm are produced in the

  	epididymis.
  	prostate.
  	spermatic cord.
  	interstitial cells.
  	seminal vesicles.
  	seminiferous tubules.

Answer 18

seminiferous tubules.

Question 19

21 Ovulation in a typical or “average” cycle usually occurs on day

  	28
  	5
  	21
  	1
  	14

Answer 19

14

Question 20

22 What hormone is responsible for the secondary sex characteristics found in women?

  	Estrogen
  	FSH
  	Prolactin
  	LH
  	Progesterone

Answer 20

Estrogen

Question 21

24 If the testes are both removed before puberty, will secondary sex characteristics develop in the male?

Yes, they will develop, but the man will be sterile.
No, they won

’

t develop and the man will be sterile.
Yes, they will develop and the man can produce children.
It is impossible to tell.

Answer 21

No, they won’t develop and the man will be sterile.

Question 22

25 During which of the following phases is the corpus luteum formed?

Proliferative
Follicular
Ovulation
Secretory

Answer 22

Secretory

Question 23

26 The muscular wall of the uterus is called the

Myometrium
Perimetrium
Endometrium
Epimetrium

Answer 23

Myometrium

Question 24

27 Which of the following hormones causes the oocyte to mature?

Testosterone
LH
FSH
Estrogen

Answer 24

FSH