front 1 Development of male reproductive structures depends on which of the following events? A) that the female hormones are suppressed during pregnancy B) the suppression of inhibin C) secretion of male hormones prenatally and lasting into the firstfew months after birth D) that human gonadotropin be synthesized in the first week of the pregnancy | back 1 secretion of male hormones prenatally and lasting into the firstfew months after birth |
front 2 Which of the following statements about sperm is not true? A) They contain very little cytoplasm or stored nutrients. B) They are sluggish in an alkaline environment. C) The acrosome is produced by the Golgi apparatus and contains hydrolytic enzymes. D) The sperm midpiece consists of mitochondria spiraled tightly around the contractile filaments of the tail. | back 2 They are sluggish in an alkaline environment. |
front 3 Milk ejection or letdown reflex is stimulated by which of the following hormones associated with pregnancy A) prolactin | back 3 oxytocin |
front 4 True/False It is necessary for the testes to be kept below body temperature for abundant, viable sperm formation. | back 4 True |
front 5 True/False The amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone. | back 5 False |
front 6 True/False Pain during ovulation is called dysmenorrhea | back 6 False |
front 7 True/False A human egg or sperm contains 23 pairs of chromosomes. | back 7 False |
front 8 True/False The adenohypophyseal hormone that triggers ovulation is estrogen. | back 8 False |
front 9 True/False Ovulation occurs near the end of the ovarian cycle. | back 9 False |
front 10 True/False Sperm are ejaculated from the corpora cavernosa of the penis. | back 10 False |
front 11 True/False Sperm from the male parent determines the sex of the child. | back 11 True |
front 12 True/False Extremely stressful physical activity in young females can result in excessive bone mass due to large amounts of estrogen production. | back 12 False |
front 13 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 are responsible for penile erection. B) They contract to allow ejaculation. C) They contract to push sperm along the ductus deferens. D) They regulate the temperature of the testes. | back 13 They regulate the temperature of the testes. |
front 14 The ability of a male to ejaculate is due to the action of ________. A) the bulbospongiosus muscles C) the dartos muscle | back 14 the bulbospongiosus muscles |
front 15 The most important risk for testicular cancer in young males is ________. A) smoking C) a diet high in fat | back 15 undescended testes |
front 16 Which of the following glands are responsible for 70% of the synthesis of semen? A) the prostate C) the pituitary | back 16 the seminal vesicles |
front 17 The "master switch" for male reproductive development is ________. A) presence of testosterone C) inhibition of estrogen | back 17 The Sry gene |
front 18 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) triple the diploid number, and with every succeeding generation, the chromosome number would continue to triple and normal development would not occur C) There is no relationship between gametes and somatic cells. D) twice the diploid number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur | back 18 twice the diploid number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur |
front 19 Which of the following female structures is homologous to the male scrotum? A) vagina | back 19 labia majora |
front 20 Spermiogenesis involves the ________. A) formation of four haploid cells from a spermatogonium B) movement of sperm in the female genital tract C) sequence of events in the rete testis D) formation of a functional sperm by the stripping away of superfluous cytoplasm | back 20 formation of a functional sperm by the stripping away of superfluous cytoplasm |
front 21 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) they are about the same size D) about the same number of each is produced per month | back 21 they have the same number of chromosomes |
front 22 Effects of estrogen include ________. A) growth of the larynx C)growth of breasts at puberty D) increased oiliness of the skin | back 22 growth of breasts at puberty |
front 23 Which of the following statements about sperm is not true? A) The acrosome is produced by the Golgi apparatus and contains hydrolytic enzymes. B) They are sluggish in an alkaline environment. C) The sperm midpiece consists of mitochondria spiraled tightly around the contractile filaments of the tail. D) They contain very little cytoplasm or stored nutrients. | back 23 They are sluggish in an alkaline environment. |
front 24 The cells that produce testosterone in the testis are called ________. A) spermatocytes C) interstitial endocrine cells | back 24 interstitial endocrine cells |
front 25 The testicular cells that construct the blood-testis barrier are the ________. A) interstitial cells | back 25 sustentocytes |
front 26 Erection of the penis results from ________ A)a parasympathetic reflex B) a sympathetic reflex C) parasympathetic activation of the bulbourethral glands D) dilation of the veins in the penis | back 26 a parasympathetic reflex |
front 27 Which is not a part of the proliferative phase of the female menstrual cycle? A) late in this phase, cervical mucus becomes thin and crystalline B) corpus luteum C) vesicular follicle growth D) development of endometrial cells | back 27 corpus luteum |
front 28 Which of the choices below is not a function of the vagina? A) serves as the birth canal B) receives semen from the penis during sexual intercourse C) serves as a passageway for the primary oocyte D) serves as a passageway for menstrual flow | back 28 serves as a passageway for the primary oocyte |
front 29 During the secretory phase of the menstrual cycle ________. A) the Graafian follicle forms C) estrogen reaches its highest levels | back 29 progesterone levels are at their highest |
front 30 Normally menstruation occurs when ________. A) the corpus luteum secretes estrogen B) blood levels of estrogen and progesterone increase C) blood levels of FSH fall off D) blood levels of estrogen and progesterone decrease | back 30 blood levels of estrogen and progesterone decrease |
front 31 The basic difference between spermatogenesis and oogenesis is that ________. A) during spermatogenesis two more polar bodies are produced B) spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only C) in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell D) the mature ovum is n, while the sperm is 2n | back 31 in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell |
front 32 Which of the following will occur after ovulation? A) The corpus luteum secretes estrogen only. B) The corpus luteum prepares to become a corpus albicans. C) The secretion of anterior pituitary gonadotropins is enhanced. D) The endometrium enters its secretory phase. | back 32 The endometrium enters its secretory phase. |
front 33 Spermatogenesis ________. A) is the process of releasing mature sperm cells into the lumen of the seminiferous tubule B) involves a kind of cell division limited to the gametes C) uses mitosis to produce gamete cells D) results in the formation of diploid cells | back 33 involves a kind of cell division limited to the gametes |
front 34 Which hormone is absolutely necessary for ovulation to occur? A) estrogen | back 34 LH |
front 35 Which of the following statements about spermatogenesis is not true? A) The secondary spermatocytes each form two spermatids. B) The primary spermatocyte forms two secondary spermatocytes. C) Each spermatid forms two sperm. D) The spermatogonium forms the primary spermatocyte. | back 35 Each spermatid forms two sperm. |
front 36 Which of the following statements about the female reproductive process is not true? A) The monthly discharge of the uterus (menses) is initiated by the decrease in secretion of female hormones. B) Rebuilding the endometrium is under the control of prolactin. C) Ovulation usually occurs 14 days after the beginning of menses. D) Fertilization usually occurs in the fallopian tube. | back 36 Rebuilding the endometrium is under the control of prolactin. |
front 37 The duct system of the male reproductive system includes all but which of the following? A) corpus spongiosum C) epididymis | back 37 corpus spongiosum |
front 38 Prostate cancer is ________. A) most common in Asians B) sometimes a slow-growing cancer that may never represent a threat to the patient C) often the result of a distortion of the urethra D) the number-one cause of death in men | back 38 sometimes a slow-growing cancer that may never represent a threat to the patient |