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A&PCH27
Question | Answer |
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1) It is necessary for the testes to be kept below body temperature. | Answer: TRUE Diff: 1 Page Ref: 1067 |
2) The prostate atrophies as a man ages, and it usually causes no health problems. | Answer: FALSE Diff: 1 Page Ref: 1071 |
3) The hormone oxytocin combines with enzymes in semen to enhance sperm motility. | Answer: FALSE Diff: 1 Page Ref: 1072 |
4) When a couple is having difficulty conceiving a child, it is necessary to investigate the sperm of the male. | Answer: TRUE Diff: 1 Page Ref: 1080 |
5) The amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone. | Answer: FALSE Diff: 1 Page Ref: 1080 |
6) Ovarian follicles contain mature eggs. | Answer: FALSE Diff: 1 Page Ref: 1084 |
7) Sexually transmitted diseases are the most important cause of reproductive disorders. | Answer: TRUE Diff: 1 Page Ref: 1100 |
8) Reproduction is not possible in males or females until one year after puberty has begun. | Answer: FALSE Diff: 1 Page Ref: 1104-1105 |
9) Males do not go through menopause as females do, but there is a steady reduction in their testosterone levels. | Answer: TRUE Diff: 1 Page Ref: 1108 |
10) Pain during ovulation is called dysmenorrhea. | Answer: FALSE Diff: 1 Page Ref: 1094 |
11) A human egg or sperm contains 23 pairs of chromosomes. | Answer: TRUE Diff: 1 Page Ref: 1073 |
12) The Pap smear is a test to detect cancerous changes in cells of the cervix. | Answer: TRUE Diff: 1 Page Ref: 1086 |
13) The adenohypophyseal hormone that triggers ovulation is estrogen. | Answer: FALSE Diff: 1 Page Ref: 1094 |
14) The female hormone most responsible for triggering ovulation is FSH. | Answer: FALSE Diff: 1 Page Ref: 1096 |
15) The male urethra serves the urinary system only. | Answer: FALSE Diff: 1 Page Ref: 1071 |
16) Both tetrads and crossovers are seen during meiosis. | Answer: TRUE Diff: 1 Page Ref: 1075-1077 |
17) Failure to attain erection is called impotence. | Answer: TRUE Diff: 1 Page Ref: 1073 |
18) Ovulation occurs near the end of the ovarian cycle. | Answer: FALSE Diff: 1 Page Ref: 1094 |
19) The corpus luteum secretes progesterone only. | Answer: FALSE Diff: 1 Page Ref: 1094 |
20) Female orgasm is required for conception. | Answer: FALSE Diff: 1 Page Ref: 1100 |
21) The first sign of puberty in females is budding breasts. | Answer: TRUE Diff: 1 Page Ref: 1105 |
22) The primary function of the testes is to produce testosterone. | Answer: FALSE Diff: 2 Page Ref: 1067-1069 |
23) The stage in meiosis where chromosomal exchange takes place is telophase. | Answer: FALSE Diff: 2 Page Ref: 1077; Fig. 27.7 |
24) The diamond-shaped area between the coccyx, pubic arch, and ischial tuberosities in the female is the vulva. | Answer: FALSE Diff: 2 Page Ref: 1089 |
25) The soft mucosal lining of the uterus is the endometrium. | Answer: TRUE Diff: 2 Page Ref: 1086 |
26) A scrotal muscle that contracts in response to cold environmental temperature is the cremaster. | Answer: TRUE Diff: 2 Page Ref: 1067 |
27) The secretions of the bulbourethral glands neutralize traces of acidic urine in the urethra and serve as a lubricant during sexual intercourse. | Answer: TRUE Diff: 2 Page Ref: 1071 |
28) The zona pellucida is formed as the follicle becomes a secondary follicle. | Answer: TRUE Diff: 2 Page Ref: 1093-1094 |
29) The molecule that enhances the ability of testosterone to promote spermatogenesis is inhibin. | Answer: FALSE Diff: 3 Page Ref: 1080 |
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 push sperm along the ductus deferens. B) They regulate the temperature of the testes. C) They are responsible for penile erection. D) They contract to allow ejaculation. Answer: B Diff: 1 Page Ref: 1067 |
2) The ability of sperm cells to move along the ductus deferens is due to ________. | A) gravity B) peristaltic contractions C) enzymatic activity D) hormonal action Answer: B Diff: 1 Page Ref: 1069-1070 |
3) The ability of a male to ejaculate is due to the action of ________. | A) parasympathetic nerves B) the dartos muscle C) luteinizing hormone D) the bulbospongiosus muscles Answer: D Diff: 1 Page Ref: 1073 |
4) The most important risk for testicular cancer in young males is ________. | A) smoking B) a diet high in fat C) nondescent of the testes D) sexually transmitted diseases Answer: C Diff: 1 Page Ref: 1069 |
5) Which of the following glands are responsible for 60% of the synthesis of semen? | A) the seminal vesicles B) the bulbourethral glands C) the prostate D) the pituitary Answer: A Diff: 1 Page Ref: 1072 |
6) Which of the following hormones controls the release of anterior pituitary gonadotropins? | A) LH B) FSH C) GnRH D) testosterone Answer: C Diff: 1 Page Ref: 1080-1081 |
7) Development of male reproductive structures depends on which of the following events? | A)female hormones are suppressed during preg B) the suppression of inhibin C) secretion of male hormones prenatally and lasting into the first few months after birth D) that human gonadotropin be synthesized in the first week of the pregnancy Answer: |
8) The primary function of the uterus is to ________. | A) protect the ovaries B) synthesize female hormones C) regulate the ovarian and menstrual cycles D) receive, retain, and nourish a fertilized ovum Answer: D Diff: 1 Page Ref: 1085-1086 |
9) The corpus luteum is ________. | A) the ruptured follicle following the ejection of an oocyte from the ovary B) the ovarian ligament that anchors the ovary medially to the uterus C) the mesovarium D) part of the uterine tube Answer: A Diff: 1 Page Ref: 1084 |
10) The structures that receive the ovulated oocyte, providing a site for fertilization, are called ________. | A) the Graafian follicles B) the fallopian tubes C) the infundibula D) the fimbriae Answer: B Diff: 1 Page Ref: 1084 |
11) Which of the following constitutes the female counterpart of the male scrotum? | A) the clitoris B) the greater vestibular glands C) the labia majora D) the mons pubis Answer: C Diff: 1 Page Ref: 1088 |
12) Human egg and sperm are similar in that ________. | A) about the same number of each is produced per month B) they have the same degree of motility C) they have the same number of chromosomes D) they are about the same size Answer: C Diff: 1 Page Ref: 1073 |
13) The constancy of the chromosome number from one cell generation to the next is maintained through ________. | A) mitosis B) meiosis C) cytokinesis D) DNA synthesis Answer: B Diff: 1 Page Ref: 1077 |
14) Fertilization generally occurs in the ________. | A) ovary B) uterus C) vagina D) fallopian tubes Answer: D Diff: 1 Page Ref: 1084 |
15) Spermiogenesis involves ________. | A)formation of4haploid cells from a spermatogonium B) the movement of sperm in the female genital tract C) the formation of a functional sperm by the stripping away of superfluous cytoplasm D) the sequence of events in the rete testis Answer: C |
16) All of the following can be considered male secondary sex characteristics except the ________. | A) development of body hair B) lowering of the voice C) development of testes as opposed to ovaries D) increasing mass of the skeleton Answer: C Diff: 1 Page Ref: 1081-1082 |
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) dizygotic B) identical C) fraternal D) of different sexes Answer: B Diff: 1 Page Ref: 1094 |
18) Characteristics of the mature sperm include ________. | A) the presence of two X chromosomes in approximately half the sperm B) the presence of Y chromosomes in approximately half the sperm C) the absence of an acrosome D) the absence of coiled mitochondria Answer: B Diff: 1 Page Ref: 1077 |
19) Functions of testosterone include ________. | A) facilitation of muscle and skeletal growth in mass B) loss of facial hair C) growth of the breasts D) drying of the skin Answer: A Diff: 1 Page Ref: 1081-1082 |
20) Effects of estrogen include ________. | A) increased oiliness of the skin B) deepening of the voice C) growth of the breasts at puberty D) growth of the larynx Answer: C Diff: 1 Page Ref: 1098 |
21) Secretion of progesterone stimulates ________. | A) contraction of uterine muscles B) preparation of the mammary glands for lactation C) secretory activity of the uterine myometrium D) development of the female secondary sex characteristics Answer: B Diff: 1 Page Ref: 1098 |
22) Which of the following statements about sperm is not true? | A)contain very little cytoplasm or stored nutrients. B)are sluggish in an alkaline environment. C)acrosome is produced by the Golgi apparatus & contains hydrolytic enzymes. D)The sperm midpiece consists of Golgi bodies spiraled around the tail. Answer |
23) The cells that produce testosterone in the testis are called ________. | A) spermatocytes B) spermatogonia C) sustentacular cells D) interstitial cells Answer: D Diff: 1 Page Ref: 1068 |
24) The testicular cells that construct the blood-testis barrier are the ________. | A) spermatocytes B) spermatogonia C) sustentacular cells D) interstitial cells Answer: C Diff: 1 Page Ref: 1079 |
25) Which of the following occurs as a result of undescended testes? | A) Male sex hormones will not be circulated in the body. B) Sperm will have no means of exit from the body. C) Inadequate or nonviable sperm will be produced. D) Inadequate blood supply will retard the development of the testes. Answer: C |
26) Erection of the penis results from ________. | A) a sympathetic reflex B) parasympathetic activation of the bulbourethral glands C) dilation of the veins in the penis D) a parasympathetic reflex Answer: D Diff: 1 Page Ref: 1072 |
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) vesicular follicle growth C) corpus luteum D) development of endometrial cells Answer: C Diff: 1 Page Ref: 1094, 1096 |
28) Select the correct statement about the testis. | A)testis is surrounded by tunica vaginalis. Blobule of testis contains 4-8 tightly coiled seminiferous tubules. C)interstitial cells are responsible for sperm cell maturation & also form blood-testis barrier. D)sustentacular secrete testosterone. Answ |
29) Select the correct statement about male sexual response. | A)Sym imp.resp for causing penile arteriolar dilation =erection. B)Erection result of vascular spaces in erectile tissues filling w/ blood C)Expansion of penile tissues = in dilation of venous outflow. D) Ejac is result parasympathetic stim Answer: B |
30) The ovaries ________. | A) are surrounded by the tunica albuginea B) are anchored to the uterus by the suspensory ligament C) are anchored to the body wall by the ovarian ligament D) contain a germinal epithelium from which the gametes arise Answer: A Diff: 1 Page Ref: 1083 |
31) Select the correct statement about mammary glands. | A) Mammary glands are sebaceous glands. B) They have functional, milk-producing, simple alveolar glands. C) The breasts of most nonpregnant females composed of fat&connective tissue. D) The pigmented area around nipple is called perineum. Answer: C |
32) During the secretory phase of the menstrual cycle ________. | A) LH reaches its highest levels B) progesterone levels are at their highest C) estrogen reaches its highest levels D) the Graafian follicle forms Answer: B Diff: 1 Page Ref: 1097-1098 |
33) Select the correct statement about the uterine cycle. A) The menstrual phase of the cycle is from day 1 to day 8. B)During secretory phase, estrogen levels are at highest. | C) During proliferative phase, levels of progesterone rise as the follicle begins to produce more hormone. D) If fertilization occurs,corpus luteum is maintained by a hormone secreted by developing embryo. Answer: D |
34) What mechanism divides the testes into lobules? | A) interstitial spaces B) seminiferous tubules C) the ductus deferens D) septal extensions of the tunica albuginea Answer: D Diff: 2 Page Ref: 1067 |
35) Which of the following statements is true concerning the mammary glands of both males and females? A) Both sexes are equally prone to breast cancer. | B) All lumps identified in breast tissue are malignant. C) The only time hormones target breast tissue is during pregnancy and lactation. D) The mammary glands are modified sweat glands that are actually part of the integumentary system. Answer: D |
36) Normally menstruation occurs when ________. | A) blood levels of FSH fall off B) blood levels of estrogen and progesterone decrease C) blood levels of estrogen and progesterone increase D) the corpus luteum secretes estrogen Answer: B Diff: 2 Page Ref: 1098 |
37) The basic difference between spermatogenesis and oogenesis is that ________. A) during spermatogenesis two more polar bodies are produced B) the mature ovum is n, while the sperm is 2n | C) in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell D) spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only Answer: C |
38) Occasionally three polar bodies are found clinging to the mature ovum. One came from an unequal division of the ovum, but from where did the other two arise? A) There were originally four polar bodies and one disappeared. | B) One is an undeveloped primary oocyte that failed to mature. C) The first polar body has also divided to produce two polar bodies. D) What you really see are two polar bodies and the sperm that will fertilize the egg. Answer: C |
39) Which of the following will occur after ovulation? | A) The corpus luteum secretes estrogen only. B) The endometrium enters its secretory phase. C) The secretion of anterior pituitary gonadotropins is enhanced. D) The corpus luteum prepares to become a corpus albicans. Answer: B Diff: 2 Page Ref: 1097- |
40) The seminal vesicles ________. | A) produce a yellowish fluid rich in fructose B) produce about 90% of the volume of semen C) encircle the upper part of the urethra D) attach at the base of the penis Answer: A Diff: 1 Page Ref: 1071 |
41) 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) results in the formation of diploid cells D) uses mitosis to produce gamete cells Answer: B |
42) The gubernaculum ________. | A) is the part of the parietal peritoneum that will become the tunica vaginalis B) will become the spermatic cord C) is a cord that will guide the descent of the testes D) will become the ductus deferens Answer: C Diff: 1 Page Ref: 1104 |
43) The brain-testicular axis ________. | A) is the tight relationship between the cortex and the control of testicular function B) involves FSH and LH release C) involves posterior pituitary release of regulating hormones D) involves a positive feedback loop control of spermatogenesis Answer |
44) Select the correct statement about testosterone control. A) GnRh from the hypothalamus causes FSH and LH release from the anterior pituitary. B) FSH stimulates testicular production of testosterone. | C) Inhibin and testosterone exert positive feedback on the hypothalamus and pituitary. D) The pineal gland is believed to be the gland that exerts the most influence in testosterone control. Answer: A |
45) Which of the following is a correct statement about uterine tubes? | A) The ampulla is the narrow constricted region. B) The infundibulum is the funnel-shaped region near the ovary. C) The isthmus is the normal site of fertilization. D) The mesometrium supports the uterine tubes along their entire length. Answer: B |
46) Select the correct statement about the hormonal events of the ovarian cycle. A) Rising levels of estrogen start follicle development. | B) High estrogen levels result in a surge of LH release. C) The follicle begins to secrete progesterone in response to estrogen stimulation. D) The LH surge stimulates further development of the secondary oocyte. Answer: B |
47) Which of these statements about sexually transmitted diseases is false? A) Chlamydia is caused by bacteria that can often be asymptomatic or bring on a wide variety of symptoms. | B) Gonorrhea is caused by a bacteria that can bring on painful discharges in males. C) Syphilis is caused by a virus that may lead to death if untreated. D) Genital herpes is caused by a virus that may cause intermittent lesions. Answer: C |
48) Which of the following statements about spermatogenesis is not true? | A) The spermatogonium forms the primary spermatocyte. B) The primary spermatocyte forms two secondary spermatocytes. C) The secondary spermatocytes each form two spermatids. D) Each spermatid forms two sperm. Answer: D Diff: 3 Page Ref: 1077 |
49) A boy who has not passed through puberty sustains an injury to his anterior pituitary such that FSH is no longer released, but LH is normal. After he grows to maturity, one would expect that he would ________. | A) be sterile B) not develop secondary sex characteristics C) be impotent (unable to have an erection) D) have impaired function of interstitial cells Answer: A Diff: 3 Page Ref: 1080 |
50) Which of the following statements about the female reproductive process is not true? A) Fertilization usually occurs in the fallopian tube. | B) Ovulation usually occurs 14 days after the beginning of menses. C) Rebuilding the endometrium is under the control of prolactin. D) The monthly discharge of the uterus (menses) is initiated by the decrease in secretion of female hormones. Answer: |
51) A low secretion of luteinizing hormone (LH) in the normal male adult would cause ________. | A) decreased testosterone secretion B) excessive beard growth C) increased spermatogenesis D) shrinkage of the anterior pituitary gland Answer: A Diff: 3 Page Ref: 1080 |
52) All of the following statements referring to the uterine cycle are true except ________. A) FSH and LH directly promote development of the uterine endometrium | B) Estrogen is secreted by the developing follicle in the follicular phase of the cycle C) The corpus luteum is formed from the ruptured follicle after ovulation D) A decrease in the levels of ovarian hormones signals menstruation Answer: A |
53) Which of the following phases or processes in the monthly reproductive cycle of the female A) maximal LH secretion and menstruation B) maximal steroid secretion by the corpus luteum and menstruation occur simultaneously? | C) early follicular development and the secretory phase in the uterus D) regression of the corpus luteum and a decrease in ovarian progesterone secretion Answer: D |
54) The duct system of the male reproductive system includes ________. | A) the epididymis, a tightly coiled tube about 6 inches long B) the urethra, which is divided into four anatomical areas C) the ductus deferens, a duct that runs from the epididymis up into the pelvic cavity D) the corpus spongiosum Answer: C |
55) An ovulating oocyte is actually activated by hormones about ________ days before ovulation. | A) 14 B) 28 C) 85 D) 110 Answer: D Diff: 2 Page Ref: 1096 |
56) Prostate cancer is _______. | A) the number one cause of death in men B) sometimes a slow-growing cancer that may never represent a threat to the patient C) most common in Asians D) often the result of a distortion of the urethra Answer: B Diff: 1 Page Ref: 1071 |
1) The ________ plexus of testicular veins assists in cooling the testis. | Answer: pampiniform Diff: 1 Page Ref: 1068 |
2) Surgical cutting of the ductus deferens as a form of birth control is called a ________. | Answer: vasectomy Diff: 1 Page Ref: 1071 |
3) The erectile tissue around the urethra is the corpus ________. | Answer: spongiosum Diff: 1 Page Ref: 1069 |
4) The midpiece of the sperm tail contains mostly ________. | Answer: mitochondria Diff: 1 Page Ref: 1079 |
5) The ________ cells of the testis nourish the newly formed sperm cells. | Answer: sustentacular Diff: 1 Page Ref: 1079 |
6) The suspensory ligament and mesovarium are part of the ________ ligament. | Answer: broad Diff: 1 Page Ref: 1083 |
7) A follicle with only a small antrum in it would be classified as a ________ follicle. | Answer: secondary Diff: 1 Page Ref: 1093 |
8) The small opening of the uterus that sperm would first enter is called the ________. | Answer: external os Diff: 1 Page Ref: 1086 |
9) The portion of the uterine endometrium that is not sloughed off every month is called the ________. | Answer: stratum basalis Diff: 1 Page Ref: 1086 |
10) ________ is caused by Treponema pallidum. | Answer: Syphilis Diff: 1 Page Ref: 1100 |
11) What are some risk factors for developing breast cancer? | Answer: Some of the risk factors for developing breast cancer are: (1) early onset of menses and late menopause; (2) first pregnancy late in life or no pregnancies at all; (3) familial history of breast cancer; (4) post menopausal hormone replacement. |