Men's Health Trivia Questions Chapter 27
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Chapter 27 test
- 1.The dartos and cremaster muscles are important to the integrity of the male reproductive system. Which of the following is true about the role they play?
- A.
They contract to allow ejaculation.
- B.
They are responsible for penile erection.
- C.
They regulate the temperature of the testes.
- D.
They contract to push sperm along the ductus deferens.
- 2.The ability of sperm cells to move along the ductus deferens is due to ________.
- A.
Hormonal action
- B.
Enzymatic activity
- C.
Peristaltic contractions
- D.
Gravity
- 3.The ability of a male to ejaculate is due to the action of ________.
- A.
The dartos muscle
- B.
The bulbospongiosus muscles
- C.
Luteinizing hormone
- D.
Parasympathetic nerves
- 4.The most important risk for testicular cancer in young males is ________.
- A.
Sexually transmitted infections
- B.
Smoking
- C.
Nondescent of the testes
- D.
A diet high in fat
- 5.Which of the following glands are responsible for 60% of the synthesis of semen?
- A.
The bulbourethral glands
- B.
The prostate
- C.
The pituitary
- D.
The seminal vesicles
- 6.Which of the following hormones controls the release of anterior pituitary gonadotropins?
- A.
FSH
- B.
GnRH
- C.
Testosterone
- D.
LH
- 7.Development of male reproductive structures depends on which of the following events?
- A.
That human gonadotropin be synthesized in the first week of the pregnancy
- B.
That the female hormones are suppressed during pregnancy
- C.
Secretion of male hormones prenatally and lasting into the first few months after birth
- D.
The suppression of inhibin
- 8.The primary function of the uterus is to ________.
- A.
Regulate the ovarian and menstrual cycles
- B.
Receive, retain, and nourish a fertilized ovum
- C.
Protect the ovaries
- D.
Synthesize female hormones
- 9.Why is the blood-testis barrier important?
- A.
Because some blood contents are toxic to the spermatozoa
- B.
Because immature sperm cells lose their motility when they encounter any blood component
- C.
Because spermatozoa and developing cells produce surface antigens that are recognized as foreign by the immune system
- D.
Actually, the blood-testis barrier has no function.
- 10.The structures that receive the ovulated oocyte, providing a site for fertilization, are called the ________.
- A.
Graafian follicles
- B.
Fallopian tubes
- C.
Fimbriae
- D.
Infundibula
- 11.If gametes were diploid like somatic cells, how many chromosomes would the zygote contain?
- A.
Half the diploid number with no change in development
- B.
Twice the diploid number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur
- C.
Triple the diploid number, and with every succeeding generation, the chromosome number would continue to triple and normal development would not occur
- D.
There is no relationship between gametes and somatic cells.
- 12.Human egg and sperm are similar in that ________.
- A.
They have the same degree of motility
- B.
They have the same number of chromosomes
- C.
About the same number of each is produced per month
- D.
They are about the same size
- 13.The constancy of the chromosome number from one cell generation to the next is maintained through ________.
- A.
DNA synthesis
- B.
Meiosis
- C.
Cytokinesis
- D.
Mitosis
- 14.Fertilization generally occurs in the ________.
- A.
Vagina
- B.
Fallopian tubes
- C.
Ovary
- D.
Uterus
- 15.Spermiogenesis involves the ________.
- A.
Sequence of events in the rete testis
- B.
Formation of four haploid cells from a spermatogonium
- C.
Formation of a functional sperm by the stripping away of superfluous cytoplasm
- D.
Movement of sperm in the female genital tract
- 16.All of the following can be considered male secondary sex characteristics except the ________.
- A.
Increasing mass of the skeleton
- B.
Development of testes as opposed to ovaries
- C.
Development of body hair
- D.
Lowering of the voice
- 17.In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be ________.
- A.
Identical
- B.
Dizygotic
- C.
Fraternal
- D.
Of different sexes
- 18.Characteristics of the mature sperm include the ________.
- A.
Absence of an acrosome
- B.
Presence of Y chromosomes in approximately half the sperm
- C.
Absence of coiled mitochondria
- D.
Presence of two X chromosomes in approximately half the sperm
- 19.How do the testes respond to exposure to excessive body warmth?
- A.
They move away from the pelvic cavity.
- B.
They move close to the pelvic cavity.
- C.
Excessive warmth has no effect on the testicles because of their location in the scrotum.
- D.
Excessive warmth is actually beneficial in that it speeds up the maturation of sperm.
- 20.Effects of estrogen include ________.
- A.
Deepening of the voice
- B.
Growth of the larynx
- C.
Increased oiliness of the skin
- D.
Growth of the breasts at puberty
- 21.Secretion of progesterone stimulates ________.
- A.
Secretory activity of the uterine myometrium
- B.
Development of the female secondary sex characteristics
- C.
Preparation of the mammary glands for lactation
- D.
Contraction of uterine muscles
- 22.Which of the following statements about sperm is not true?
- A.
The sperm midpiece consists of mitochondria spiraled tightly around the contractile filaments of the tail.
- B.
The acrosome is produced by the Golgi apparatus and contains hydrolytic enzymes.
- C.
They are sluggish in an alkaline environment.
- D.
They contain very little cytoplasm or stored nutrients.
- 23.The cells that produce testosterone in the testis are called ________.
- A.
Spermatogonia
- B.
Interstitial cells
- C.
Spermatocytes
- D.
Sustentacular cells
- 24.The testicular cells that construct the blood-testis barrier are the ________.
- A.
Interstitial cells
- B.
Sustentacular cells
- C.
Spermatocytes
- D.
Spermatogonia
- 25.Which of the following occurs as a result of undescended testes?
- A.
Inadequate or nonviable sperm will be produced.
- B.
Male sex hormones will not be circulated in the body.
- C.
Sperm will have no means of exit from the body.
- D.
Inadequate blood supply will retard the development of the testes.
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