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Chapter 27 Quiz Review
The Reproductive System
Terms in this set (83)
The zona pellucida is formed as the follicle becomes a secondary follicle.
Female orgasm is required for conception.
Ovarian follicles contain mature eggs.
The testis is divided into seminiferous tubules which contain the lobules that produce sperm and the ejaculatory duct that allows the sperm to be ejected from the body.
The Pap smear is a test to detect cancerous changes in cells of the cervix.
A human egg or sperm contains 23 pairs of chromosomes.
Male testicular functions are regulated by FSH and LH.
During spermiogenesis ________.
the acrosome migrates towards the anterior end of the spermatid because its hydrolytic enzymes will be needed for penetration when the sperm contacts the egg during fertilization
The structures that receive the ovulated oocyte, providing a site for fertilization, are called the ________.
Which of the following is a correct statement about uterine tubes?
The infundibulum is the funnel-shaped region near the ovary.
Prostate cancer is ________.
sometimes a slow-growing cancer that may never represent a threat to the patient
If gametes were diploid like somatic cells, how many chromosomes would the zygote contain?
Twice the diploid number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur.
Which of the following glands are responsible for producing 70% of semen volume?
the seminal vesicles
Secretion of progesterone stimulates ________.
preparation of the mammary glands for lactation
If a woman has just ended her menstrual phase, when is she most likely to ovulate?
in about 14 days
Which of the following hormones controls the release of anterior pituitary gonadotropins?
All of the following things occur during meiosis I. Select the statement below that does NOT occur during meiosis I.
The sister chromatids are separated from each other.
Which of the following is incurable?
The basic difference between spermatogenesis and oogenesis is that ________.
in oogenesis, one mature ovum is produced from the parent cell, and in spermatogenesis four mature sperm are produced from the parent cell
Select the correct statement about the uterine cycle.
If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.
Which of the following statements is true of metaphase I of meiosis I?
Homologous pairs align randomly on the spindle equator with a mix of paternal and maternal homologs destined for each of the daughter cells.
The dartos and cremaster muscles are important to the integrity of the male reproductive system. Which of the following best describes the role they play?
They regulate the temperature of the testes.
The soft mucosal lining of the uterus is the endometrium.
The amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone.
When it is cold, the scrotum is pulled away from the body.
The prostate atrophies as a man ages, and it usually causes no health problems.
Extremely stressful physical activity in young females can result in excessive bone mass due to large amounts of estrogen production.
The hypothalamic-pituitary-gonadal axis ________.
involves FSH and LH release from the anterior pituitary
Which of the following does NOT occur in both the male and female sexual response?
A refractory period follows orgasm.
Normally menstruation occurs when ________.
blood levels of estrogen and progesterone decrease
Which of these statements about sexually transmitted infections is FALSE?
Syphilis is caused by a virus that may lead to death if untreated.
The critical factor that determines gender during development is ________.
the SRY gene
The most important risk for testicular cancer in young males is _______.
failure of the testis to make their normal descent
Which of the following female structures is homologous to the male scrotum?
The ability of sperm cells to move along the ductus deferens is due to ________.
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?
The first polar body has also divided to produce two polar bodies.
All but one of the following statements are true regarding the differences between early and late spermatids. Select the answer below that does NOT reflect a difference between early and late spermatids.
Early spermatids have not undergone meiosis and are still diploid.
Which of the choices below is NOT a function of testosterone?
stimulates the HPG axis
Which of the choices below is NOT a part of the hypothalamic-pituitary-gonadal axis?
The smaller cell produced by oogenesis meiosis I, called the first polar body, is essentially a packet of discarded nuclear material.
When a couple is having difficulty conceiving a child, it is necessary to investigate the sperm of the male.
The stage in meiosis where chromosomal exchange takes place is telophase I.
A scrotal muscle that contracts in response to cold environmental temperature is the cremaster.
involves a kind of cell division limited to the gametes
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 ________.
All but one of the following statements is true with regard to the blood testis barrier. Select the one statement that is FALSE.
The barrier is made up of astrocytes that surround blood vessels in the testis.
Which of the following is true of testosterone?
Testosterone provides positive feedback on gonadotropin release.
Erection of the penis results from ________.
a parasympathetic reflex that promotes release of nitric oxide
The oral contraceptive pill, informally called "the pill," contains an estrogen and progesterone, or a synthetic mimic of this hormone. The combination of these two hormones, taken in the pill and circulating in the blood, works because ________.
the hormones cause the woman's body to mimic the activities of a pregnancy and disrupt the ovarian cycle, preventing ovulation
Which male hormone provides negative feedback for the secretion of FSH?
Which of the following phases or processes in the monthly reproductive cycle of the female occur simultaneously?
regression of the corpus luteum and a decrease in ovarian progesterone secretion
The constancy of the chromosome number from one cell generation to the next is maintained through ________.
Which of the following will occur immediately after ovulation?
The endometrium enters its secretory phase.
Which of the choices below is NOT a function of the vagina?
serves as a passageway for the primary oocyte
The cells that produce testosterone in the testis are called ________.
interstitial endocrine cells
Human egg and sperm are similar in that ________.
they have the same number of chromosomes
Select the statement below that is FALSE.
Meiosis occurs only after the onset of puberty while mitosis occurs throughout an entire lifetime.
All but one of the events described below occur during spermiogenesis. Select the event that does NOT occur during spermiogenesis.
Mitochondrial DNA is packaged into the nucleus to be delivered to the egg during fertilization.
During the secretory phase of the menstrual cycle, ________ reaches its highest levels.
A patient with trichomoniasis, if they have any symptoms at all, will most likely exhibit which of the following?
yellow-green vaginal discharge and strong order
Which hormone is the necessary trigger for ovulation to occur?
All of the following statements referring to the uterine cycle are true EXCEPT ________.
FSH and LH directly promote development of the uterine endometrium
Effects of estrogen include ______.
growth of the breasts at puberty
Select the statement which is FALSE.
Crossing over is a source of genetic variability seen in meiosis while independent assortment is a source of genetic variability seen in mitosis.
Male erection is a response to a parasympathetic reflex, and ejaculation is a response to a sympathetic reflex.
The first sign of puberty in females is budding breasts.
The molecule that enhances the ability of testosterone to promote spermatogenesis is inhibin.
The corpus luteum secretes progesterone only.
It is necessary for the testes to be kept below body temperature for abundant, viable sperm formation.
A low secretion of luteinizing hormone (LH) in the normal male adult would cause ________.
decreased testosterone secretion
Why doesn't semen enter the urinary bladder during ejaculation?
The smooth muscle sphincter at the base of the urinary bladder closes.
Of the following statements, select the statement that is NOT true of uterine function.
The narrow portion of the uterus near the cervix is the most typical site of fertilization.
Select the statement which is true regarding independent assortment.
It is a significant source of genetic variation only during meiosis I.
The diploid number of chromosomes in a human is 46. Therefore, the number of chromosomes in a primary spermatocyte or primary oocyte is ________.
Which of the following statements about spermatogenesis is NOT true?
Each spermatid forms two sperm.
Select the correct statement about the hormonal events of the ovarian cycle.
High estrogen levels result in a surge of LH release.
Sperms are ejaculated from the corpora cavernosa of the penis.
Ovulation occurs near the end of the ovarian cycle.
Sexually transmitted infections are the most important cause of reproductive disorders.
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 ________.
be unable to produce viable sperm
The adenohypophyseal hormone that triggers ovulation is estrogen.
Fertilization generally occurs in the ________.
Sustentocytes prevent sperm antigens from entering the bloodstream.
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