Deck 16: The Male Reproductive System

Question 1

Which pair of chromosomes determines whether a child is male or female?

A) 20th
B) 21st
C) 22nd
D) 23rd

Answer 1

D
Explanation: The 23rd pair of chromosomes (sex chromosomes X and Y) determines the gender of the offspring.

Question 2

Which statement about the dartos muscle is false?

A) The dartos muscle is the smooth muscle wall in the scrotum.
B) The contraction of the dartos muscle reduces the surface area of the scrotum to reduce heat loss.
C) The dartos muscle reacts to temperature changes.
D) If it is warm, the dartos muscle contracts to help keep the testes cool.

Answer 2

D
Explanation: The walls of the scrotum consist of skin, smooth muscle, and connective tissue. The smooth muscle wall is the dartos muscle, which reacts to temperature changes by contracting and relaxing. It contracts when it is cold, which reduces the space in the scrotum and draws the testes together. This helps keep the testes warm. The contraction of the dartos muscle also reduces the surface area of the scrotum to reduce heat loss. However, if it is warm, the dartos muscle relaxes, maximizing the space for the testes to help keep them cool.

Question 3

What is the sac that houses the testes?

A) Tunica albuginea
B) Seminiferous tubule
C) Rete testis
D) Scrotum

Answer 3

D
Explanation: Each testis has an outer fibrous capsule called the tunica albuginea. Inside this capsule, the testis is divided into 250 to 300 wedge-shaped lobules. Each lobule contains 1 to 4 seminiferous tubules. These tubules lead to a network of ducts called the rete testis located posteriorly in the testes, still within the fibrous capsule. The scrotum is a pendulous sac that houses the testes.

Question 4

Which sex cell determines the gender of the offspring?

A) Sperm or egg
B) Sperm
C) Egg
D) Neither sperm nor egg

Question 5

Which of the following combining forms means duct?

A) orchi/o
B) semin/o
C) vas/o
D) crypt/o

Question 6

The testes descend through what opening in the abdominal wall?

A) Testicular canal
B) Inguinal canal
C) Gubernaculum canal
D) Neither answer is correct

Question 7

Which of the following combining forms means hidden?

A) orchi/o
B) semin/o
C) vas/o
D) crypt/o

Question 8

Which of the following represents a female zygote?

A) XX
B) XY
C) X
D) Y

Question 9

The testicles belong to which two systems?

A) Reproductive and lymphatic
B) Reproductive and endocrine
C) Endocrine and excretory
D) Reproductive and excretory

Question 10

Which of the following represents a male zygote?

A) XX
B) XY
C) X
D) Y

Question 11

Which of the following combining forms means semen?

A) orch/o
B) semin/o
C) vas/o
D) crypt/o

Question 12

Which of the following is not a secondary reproductive structure in the male?

A) Penis
B) Spermatic ducts
C) Testicles
D) Scrotum

Question 13

Which of the following combining forms refers to the prostate?

A) pen/o
B) vas/o
C) prosta/o
D) prostat/o

Question 14

What structure cools the warm blood from the testicular artery?

A) Cremaster muscle
B) Ductus deferens
C) Dartos muscle
D) Pampinform plexus

Question 15

Which of the following represents the 23^rd chromosome of an egg cell?

A) XX
B) XY
C) X
D) Y

Question 16

What is the outer fibrous capsule of the testis?

A) Tunica albuginea
B) Seminiferous tubule
C) Rete testis
D) Scrotum

Question 17

Which of the following is the function of the cremaster muscle?

A) Temperature regulation
B) Forms a tube to carry sperm
C) Divides the scrotum into two compartments
D) None of these are correct.

Question 18

Which of the following combining forms means male?

A) orchid/o
B) andr/o
C) vas/o
D) crypt/o

Question 19

Which of the following combining forms refers to testicle?

A) testi/o
B) orochid/o
C) orch/o
D) tes/o

Question 20

Which of the following combining forms refers to a structure within the male reproductive system?

A) epididym/o
B) orch/o
C) pen/o
D) All of these answers are correct.

Question 21

Which accessory gland secretes a thick,yellowish fluid that contains sugar and other carbohydrates to nourish sperm,and a protein that will help semen adhere to the vaginal walls?

A) Seminal vesicle
B) Prostate
C) Bulbourethral
D) Glans penis

Question 22

Which accessory gland surrounds the urethra inferior to the urinary bladder?

A) Seminal vesicle
B) Prostate
C) Bulbourethral
D) Glans penis

Question 23

What role does FSH play in stimulating sperm production?

A) FSH allows testosterone to accumulate in the tubules to initiate sperm production.
B) FSH produces androgen-binding protein.
C) FSH stimulates sustenacular cells in the seminiferous tubules to produce androgen-binding protein.
D) None of these are correct.

Question 24

Which accessory gland secrets alkaline fluid to help protect sperm from the acidity of the vagina where the semen will be deposited during intercourse?

A) Both answers are correct.
B) Prostate
C) Bulbourethral
D) None of these answers are correct.

Question 25

Which accessory gland produces trace amounts of a fluid that lubricate the end of the penis to make intercourse easier,and neutralizes the pH of the male urethra?

A) Seminal vesicle
B) Prostate
C) Bulbourethral
D) Glans penis

Question 26

What is the purpose of the sperm's tail?

A) To contain enzymes that are used to penetrate an egg
B) To contain mitochondria that supply ATP to energize the tail
C) To house the sperm's chromosomes
D) To propel the sperm

Question 27

Which of the following carries sperm from the ductus deferens?

A) Efferent ductules
B) Epididymis
C) Ductus deferens
D) Ejaculatory duct

Question 28

What structure stores mature sperm?

A) Efferent ductules
B) Epididymis
C) Ductus deferens
D) Ejaculatory duct

Question 29

Which part of the penis has many nerve endings for sexual stimulation?

A) Root
B) Shaft
C) Glans
D) Prepuce

Question 30

Which of the following merges with a duct from the seminal vesicle to form the ejaculatory duct?

A) Efferent ductules
B) Epididymis
C) Ductus deferens
D) Ejaculatory duct

Question 31

Which of the following columns of erectile tissue is composed of smaller spaces?

A) Corpora cavernosa
B) Corpora spongiosum
C) Both columns have smaller spaces.
D) Neither column has smaller spaces.

Question 32

Which part of the sperm contains an acrosome cap?

A) Head
B) Tail
C) Midpiece
D) None of these are correct.

Question 33

What is the purpose of the sperm's midpiece?

A) To contain enzymes that are used to penetrate an egg
B) To contain mitochondria that supply ATP to energize the tail
C) To house the sperm's chromosomes
D) To propel the sperm

Question 34

Sperm travels from the testes through what duct?

A) Efferent ductules
B) Epididymis
C) Ductus deferens
D) Ejaculatory duct

Question 35

Which part of the penis is surgically removed during a circumcision?

A) Root
B) Shaft
C) Glans
D) Prepuce

Question 36

Which of the following represents the correct sequence of how sperm will travel through the spermatic ducts?

A) Efferent ductules- epididymis - ductus deferens - ejaculatory duct
B) Efferent ductules- ductus deferens - ejaculatory duct - epididymis
C) Ductus deferens - ejaculatory duct- efferent ductules - epididymis
D) Epididymis - ductus deferens - ejaculatory duct - efferent ductules

Question 37

Which part of the sperm cell has mitochondria?

A) Head
B) Tail
C) Midpiece
D) None of these are correct.

Question 38

Which statement about the physiology of the male reproductive system is false?

A) The SRY gene results in the formation of androgen receptors in the fetus.
B) Developing gonads in the fetus produce large amounts of testosterone to fit into these receptors so that the male anatomy continues to develop.
C) Testosterone production ceases a few months after birth and remains dormant until puberty.
D) Puberty ends with the first ejaculation of viable sperm at around age 10.

Question 39

Which of the following is not an accessory gland in the male reproductive system?

A) Seminal vesicle
B) Prostate
C) Bulbourethral
D) Glans penis

Question 40

What is the purpose of the acrosome cap?

A) To contain enzymes that are used to penetrate an egg
B) To contain mitochondria that supply ATP to energize the tail
C) To house the sperm's chromosomes
D) To propel the sperm

Question 41

A spermatogonium enlarges to become what type of cell?

A) Primary spermatocyte
B) Secondary spermatocyte
C) Spermatid
D) Sperm

Question 42

Which of the following represents the correct pathway for sperm during ejaculation?

A) Seminiferous tubules - ductus deferens - ejaculatory ducts - rete testes - efferent ductules - epididymis - prostatic urethra - penile urethra - outside the body
B) Ductus deferens - ejaculatory ducts - rete testes - efferent ductules - epididymis - seminiferous tubules - prostatic urethra - penile urethra - outside the body
C) Seminiferous tubules - rete testes - efferent ductules - epididymis - ductus deferens - ejaculatory ducts - prostatic urethra - penile urethra - outside the body
D) Rete testes - efferent ductules - epididymis - seminiferous tubules - ductus deferens - ejaculatory ducts - prostatic urethra - penile urethra - outside the body

Question 43

What process in meiosis involves random alignment of chromosomes?

A) Independent assortment
B) Crossing over
C) Mitosis
D) Meiosis II

Question 44

During which stage of sexual response does heart rate and blood pressure increase?

A) Arousal
B) Emission
C) Ejaculation
D) Resolution

Question 45

During which stage of sexual response does the prostate and seminal vesicles add their secretions to semen?

A) Arousal
B) Emission
C) Ejaculation
D) Resolution

Question 46

During which stage of sexual response is the sperm moved by peristaltic contractions through the ductus deferens to its ampulla?

A) Arousal
B) Emission
C) Ejaculation
D) Resolution

Question 47

What is the purpose of spermiogenesis?

A) To transform spermatids into functional sperm
B) Produce mature sperm
C) To allow sperm to form a tail
D) None of these are correct.

Question 48

Which of the following is not a result of testosterone's negative feedback effect on the hypothalamus?

A) Any further production of GnRH is inhibited.
B) FSH and LH production is increased.
C) The overproduction of testosterone is prevented.
D) All of the answers are correct.

Question 49

What process in meiosis involves chromatids exchanging parts?

A) Independent assortment
B) Crossing over
C) Mitosis
D) Prophase II

Question 50

During which stage of sexual response does orgasm occur?

A) Arousal
B) Emission
C) Ejaculation
D) Resolution

Question 51

All of the following are male secondary sex characteristics except which one?

A) Deeper voice
B) Development of pubic hair
C) Aggression
D) All of the answers choices are male secondary sex characteristics.

Question 52

Spermatagonia divide by what process?

A) Meiosis
B) Mitosis
C) Both answers are correct.
D) None of these are correct.

Question 53

What is the purpose of spermatogenesis?

A) To produce four cells, each with 23 chromosomes, from a specialized stem cell with 46 chromosomes
B) To produce two cells, each with 23 chromosomes, from a specialized stem cell with 46 chromosomes
C) To produce four cells, each with 23 pairs of chromosomes, from a specialized stem cell with 46 chromosomes
D) To produce four cells, each with 23 chromosomes, from a specialized stem cell with 23 chromosomes

Question 54

Primary spermatocytes divide by what process?

A) Meiosis
B) Meiosis I
C) Meiosis II
D) None of these are correct.

Question 55

Secondary spermatocytes divide by what process?

A) Meiosis
B) Meiosis I
C) Meiosis II
D) None of these are correct.

Question 56

During which stage of sexual response do neural signals cause the arteries in the penis to dilate,so the penile erectile tissues engorge with blood?

A) Arousal
B) Emission
C) Ejaculation
D) Resolution

Question 57

What role does LH play in stimulating sperm production?

A) LH allows testosterone to accumulate in the tubules to initiate sperm production.
B) LH targets the interstitial cells between seminiferous tubules in the testes, telling them to produce testosterone.
C) LH stimulates sustenacular cells in the seminiferous tubules to produce androgen-binding protein.
D) None of these are correct.

Question 58

Which statement about meiosis is false?

A) Meiosis is a two-division process that starts with a parent cell of 46 chromosomes.
B) Meiosis results in four identical daughter cells, each having 23 chromosomes.
C) Meiosis produces a set of chromosomes in each daughter cell that is different than the sets in the other daughter cells due to independent assortment and crossing-over.
D) Meiosis produces haploid cells.

Question 59

What is the male's germ cell?

A) Sperm
B) Spermatozoa
C) Spermatogonia
D) Spermatid

Question 60

Which of the following represents the correct sequence of the stages of the male sexual response?

A) Arousal - emission - ejaculation - resolution
B) Emission - arousal - ejaculation - resolution
C) Arousal- ejaculation - emission - resolution
D) None of these are correct.

Question 61

Increased levels of what two hormones cause male climacteric or andropause?

A) GnRH and FSH
B) FSH and LH
C) GNRH and LH
D) None of these are correct.

Question 62

Which disorder is common in aging men?

A) Impotence
B) Cryptorchidism
C) Androgen-insensitivity syndrome
D) Hypospadias

Question 63

During which stage of sexual response do sympathetic neurons constrict the arteries bringing blood to the penis?

A) Arousal
B) Emission
C) Ejaculation
D) Resolution

Question 64

Which of the following is a congenital defect of the male reproductive system?

A) Erectile dysfunction
B) Benign prostatic hyperplasia
C) Androgen-insensitivity syndrome
D) Hypospadias

Question 65

Which male reproductive system disorder is characterized by the urethra opening on the ventral side or base of the penis instead of on the tip of the glans?

A) Cryptorchidism
B) Benign prostatic hyperplasia
C) Prostate cancer
D) Hypospadias

Question 66

What is the sperm count of an infertile male?

A) Less than 100 million sperm/mL
B) Less than 200 million sperm/mL
C) Less than 20 million sperm/mL
D) Less than 500 million sperm/mL

Question 67

What happens to testosterone as a man ages?

A) It increases as men get older.
B) It decreases as men get older.
C) It does not change as men get older.
D) Age does not determine whether testosterone increases or decreases.

Question 68

Which STD is characterized by the growth of warts on the genitals?

A) Gonorrhea
B) HPV
C) Syphilis
D) HIV

Question 69

What causes androgen-insensitivity syndrome?

A) A lack of androgen receptors in the developing fetus
B) Increased estrogen in the developing fetus
C) A lack of testosterone in the developing fetus
D) None of these are correct.

Question 70

Which diagnostic test uses sound waves to visually assess the prostate for evidence of cancer?

A) Digitial rectal exam
B) Benign prostate hyperplasia
C) Prostatic-specific antigen test
D) Transrectal ultrasound and biopsy

Question 71

Which male reproductive system disorder is characterized by enlargement of the prostate?

A) Cryptorchidism
B) Benign prostatic hyperplasia
C) Prostate cancer
D) Hypospadias

Question 72

Which male reproductive system disorder is characterized by male infants born with undescended testes?

A) Cryptorchidism
B) Benign prostatic hyperplasia
C) Prostate cancer
D) Hypospadias

Question 73

What is the frequent inability to achieve an erection sufficient to penetrate a vagina that increases as men age?

A) Andropause
B) Erectile dysfunction
C) Male climacteric
D) Benign prostatic hyperplasia

Question 74

During which stage of sexual response do the bulbourethral glands secrete their lubricating fluid?

A) Arousal
B) Emission
C) Ejaculation
D) Resolution

Question 75

Which of the following statements is false regarding prostate cancer?

A) A common diagnostic exam for prostate cancer is a digital rectal exam.
B) Prostate cancer can be detected by measuring prostate specific antigen levels.
C) Prostate enlargement happens toward the center of the prostate.
D) All of these statements are false.

Question 76

Which disorder is characterized by an accumulation of fluid in the scrotum?

A) Cryptorchidism
B) Phimosis
C) Hypospadias
D) Hydrocele

Question 77

Which disorder is characterized by tight foreskin that cannot be pulled back over the glans penis?

A) Cryptorchidism
B) Phimosis
C) Hypospadias
D) Hydrocele

Question 78

Which STD is caused by the Treponemapallidum bacterium?

A) Gonorrhea
B) Herpes
C) Syphilis
D) Chlamydia

Question 79

Which STD is characterized by having a primary,secondary and latent stage?

A) Gonorrhea
B) HPV
C) Syphilis
D) HIV

Question 80

Which male reproductive system disorder is characterized by the external reproductive anatomy of these individuals being female,but genetically,these individuals are male?

A) Cryptorchidism
B) Benign prostatic hyperplasia
C) Androgen-insensitivity syndrome
D) Hypospadias