If fertilization does not occur, the corpus luteum
A. secretes progesterone.
B. secretes hCG.
C. forms the corpus albicans.
D. forms into a placenta.
B. secretes hCG.
C. forms the corpus albicans.
D. forms into a placenta.
Ovulation
A. normally occurs on day 14 of a 28-day cycle.
B. is caused by the secretion of hCG by the trophoblastic cells.
C. causes the release of hormones that form the graafian follicle.
D. normally occurs on day 28 of a 28-day cycle.
A. normally occurs on day 14 of a 28-day cycle.
B. is caused by the secretion of hCG by the trophoblastic cells.
C. causes the release of hormones that form the graafian follicle.
D. normally occurs on day 28 of a 28-day cycle.
When is fertilization most likely to occur?
A. immediately after menstruation
B. immediately before menstruation
c. around ovulation (midcycle)
d. day 28 of a 28-day cycle
A. immediately after menstruation
B. immediately before menstruation
c. around ovulation (midcycle)
d. day 28 of a 28-day cycle
With which event is the LH surge most associated?
A. implantation
B. ovulation
C. ejaculation
D. lactation
A. implantation
B. ovulation
C. ejaculation
D. lactation
The luteal phase of the ovarian cycle:
a. is dominated by progesterone.
b. requires hCG.
C. occurs only in the pregnant state.
d. immediately precedes ovulation.
a. is dominated by progesterone.
b. requires hCG.
C. occurs only in the pregnant state.
d. immediately precedes ovulation.
The endometrium, myometrium, and perimetrium are
a. embryonic germ layers.
b. layers of the uterus.
c. segments of the fallopian tubes.
d. uterine glands that secrete the hormones of pregnancy.
a. embryonic germ layers.
b. layers of the uterus.
c. segments of the fallopian tubes.
d. uterine glands that secrete the hormones of pregnancy.
The seminal vesicles, bulbourethral glands, and prostate gland
a. secrete testosterone.
b. are called external genitalia.
c. contribute to the formation of semen.
d. are sites of sperm production.
a. secrete testosterone.
b. are called external genitalia.
c. contribute to the formation of semen.
d. are sites of sperm production.
What is the cause of an erection?
a. secretion of testosterone
b. contraction of the ejaculatory ducts
c. filling of erectile tissue with blood
d. emission
a. secretion of testosterone
b. contraction of the ejaculatory ducts
c. filling of erectile tissue with blood
d. emission
Which of the following results in sterility?
a. phimosis
b. circumcision
c. vasectomy
d. emission
a. phimosis
b. circumcision
c. vasectomy
d. emission
Which of the following word-pairs best describes why it is necessary that the testes descend into the scrotum?
a. temperature, fertility
b. infection, sterility
c. cyanosis, ischemia
d. jaundice, implantation
a. temperature, fertility
b. infection, sterility
c. cyanosis, ischemia
d. jaundice, implantation
The shaft, or body, of this structure contains three columns of erectile tissue.
a. epididymis
b. vas deferens
c. urethra
d. penis
a. epididymis
b. vas deferens
c. urethra
d. penis
Which of the following is true of the process of meiosis?
a. occurs in every cell in the body except the oocyte and spermatogonium
b. reduces the chromosome number from 46 to 23
c. increases the chromosome number from 23 to 46
d. occurs in the ovum but not in the sperm
a. occurs in every cell in the body except the oocyte and spermatogonium
b. reduces the chromosome number from 46 to 23
c. increases the chromosome number from 23 to 46
d. occurs in the ovum but not in the sperm
Which of the following is true of menopause?
a. usually occurs in the late 20s and early 30s
b. is always accompanied by severe and debilitating symptoms
c. is accompanied by a gradual decrease in menstrual periods
d. is accompanied by an increase in estrogen and progesterone secretion
a. usually occurs in the late 20s and early 30s
b. is always accompanied by severe and debilitating symptoms
c. is accompanied by a gradual decrease in menstrual periods
d. is accompanied by an increase in estrogen and progesterone secretion
What is the term that refers to the implantation and growth of the fetus into the walls of the fallopian tubes?
a. menses
b. menarche
c. ectopic pregnancy
d. ovulation
a. menses
b. menarche
c. ectopic pregnancy
d. ovulation
What is the effect of suckling at breast and oxytocin release?
a. parturition
b. implantation
c. milk let-down reflex
d. ovulation
a. parturition
b. implantation
c. milk let-down reflex
d. ovulation
Which structure secretes colostrum?
a. testes
b. mammary glands
c. prostate gland
d. graafian follicle
a. testes
b. mammary glands
c. prostate gland
d. graafian follicle
Which group is incorrect?
a. parts of a sperm: head, body, corpus luteum
b. parts of the uterus: fundus, body, cervix
c. layers of the uterus: perimetrium, myometrium, endometrium
d. phases of the uterine cycle: menstrual phase, pro-liferative phase, secretory phase
a. parts of a sperm: head, body, corpus luteum
b. parts of the uterus: fundus, body, cervix
c. layers of the uterus: perimetrium, myometrium, endometrium
d. phases of the uterine cycle: menstrual phase, pro-liferative phase, secretory phase
Which group is incorrect?
a. layers of the uterus: endometrium, myometrium, graafian follicle
b. genital ducts: epididymis, ejaculatory ducts, vas deferens, urethra
c. glands: seminal vesicles, bulbourethral, prostate
d. phases of the ovarian cycle: follicular phase, lu-teal phase
a. layers of the uterus: endometrium, myometrium, graafian follicle
b. genital ducts: epididymis, ejaculatory ducts, vas deferens, urethra
c. glands: seminal vesicles, bulbourethral, prostate
d. phases of the ovarian cycle: follicular phase, lu-teal phase
Which group is incorrect?
a. glands: seminal vesicles, bulbourethral, prostate
b. phases of the uterine cycle: menstrual phase, luteal phase, secretory phase
c. gonads: ovaries, testes
d. external genitals: penis, scrotum, labia, mons pubis
a. glands: seminal vesicles, bulbourethral, prostate
b. phases of the uterine cycle: menstrual phase, luteal phase, secretory phase
c. gonads: ovaries, testes
d. external genitals: penis, scrotum, labia, mons pubis
P.R. just given birth to a 7-Ib baby girl and intends to breast-feed. Even though her milk has not yet come in, P.R. is encouraged to nurse her baby frequently. How will the baby be nourished during the first few days?
a. She will receive no nourishment while nursing.
b. She has no appetite and therefore will not nurse.
c. She will receive nourishment from the colostrum.
d. She will receive nourishment from bottle feeding until her mother's milk comes in.
a. She will receive no nourishment while nursing.
b. She has no appetite and therefore will not nurse.
c. She will receive nourishment from the colostrum.
d. She will receive nourishment from bottle feeding until her mother's milk comes in.
P.R. just given birth to a 7-Ib baby girl and intends to breast-feed. Even though her milk has not yet come in, P.R. is encouraged to nurse her baby frequently. What is accomplished by frequent nursing or suckling?
a. suppresses the secretion of prolactin
b. stimulates lactation and the flow of milk
c. suppresses oxytocin
d. causes uterine bleeding
a. suppresses the secretion of prolactin
b. stimulates lactation and the flow of milk
c. suppresses oxytocin
d. causes uterine bleeding
Which of the following of is least true of prolactin?
a. It is also called lactogenic hormone.
b. It is responsible for the milk let-down reflex.
c. It is secreted by the anterior pituitary gland.
d. It stimulates the mammary glands to produce milk.
a. It is also called lactogenic hormone.
b. It is responsible for the milk let-down reflex.
c. It is secreted by the anterior pituitary gland.
d. It stimulates the mammary glands to produce milk.
The follicular and luteal phases of the female reproductive cycle:
a. describe the ovarian phases of the reproductive cycle.
b. all is applicable .
c. refer to the endometrial response to estrogen and progesterone.
d. describe the uterine phases of the reproductive cycle.
a. describe the ovarian phases of the reproductive cycle.
b. all is applicable .
c. refer to the endometrial response to estrogen and progesterone.
d. describe the uterine phases of the reproductive cycle.
Which of the following is false regarding progesterone?
a. It is the primary secretion of the corpus luteum.
b. It is secreted by the anterior pituitary gland.
c. It targets the postovulatory endometrium.
d. It is an ovarian hormone.
a. It is the primary secretion of the corpus luteum.
b. It is secreted by the anterior pituitary gland.
c. It targets the postovulatory endometrium.
d. It is an ovarian hormone.
Which of the following is least true of the mature sperm cell?
a. Its acrosome assists the sperm with its ability to penetrate the ovum.
b. The mature sperm contains 23 chromosomes.
c. It is formed within the testes and is stored within the prostate gland until ejaculation.
d. It consists of a head, body, and tail.
a. Its acrosome assists the sperm with its ability to penetrate the ovum.
b. The mature sperm contains 23 chromosomes.
c. It is formed within the testes and is stored within the prostate gland until ejaculation.
d. It consists of a head, body, and tail.
The bulbourethral glands:
a. provide important nutrients in the semen for sperm nourishment.
b. are also known as the Bartholin glands.
c. secrete a mucous lubricant during intercourse.
d. are located at the base of the seminal vesicle.
a. provide important nutrients in the semen for sperm nourishment.
b. are also known as the Bartholin glands.
c. secrete a mucous lubricant during intercourse.
d. are located at the base of the seminal vesicle.
The prostate gland:
a. surrounds the upper portion of the urethra and contributes to the formation of semen.
b. is located in the scrotum.
c. contains the cells concerned with sperm formation.
d. contracts in response to gonadotropins.
a. surrounds the upper portion of the urethra and contributes to the formation of semen.
b. is located in the scrotum.
c. contains the cells concerned with sperm formation.
d. contracts in response to gonadotropins.
Which of the following is false regarding testosterone?
a. It is necessary for the production of sperm.
b. It is classified as an androgen.
c. It is secreted by the seminal vesicles.
d. It is necessary for the development of the male secondary sex characteristics.
a. It is necessary for the production of sperm.
b. It is classified as an androgen.
c. It is secreted by the seminal vesicles.
d. It is necessary for the development of the male secondary sex characteristics.
Which of the following causes an erection?
a. The adenohypophysis secretes gonadotropins.
b. The prostate gland contracts forcing semen into the urethra.
c. Erectile tissue fills with blood.
d. The cremaster muscle contracts forcing semen through the prostate gland into the vas deferens.
a. The adenohypophysis secretes gonadotropins.
b. The prostate gland contracts forcing semen into the urethra.
c. Erectile tissue fills with blood.
d. The cremaster muscle contracts forcing semen through the prostate gland into the vas deferens.
Emission:
a. occurs only in the penis.
b. refers to the expulsion of semen from the urethra during copulation.
c. refers to the movement of sperm and glandular secretions from the testes and genital ducts into the urethra to mix and form semen.
d. refers to the filling of the structures of the penis with blood.
a. occurs only in the penis.
b. refers to the expulsion of semen from the urethra during copulation.
c. refers to the movement of sperm and glandular secretions from the testes and genital ducts into the urethra to mix and form semen.
d. refers to the filling of the structures of the penis with blood.
Interstitial cell-stimulating hormone:
a. stimulates spermatogenesis by the prostate gland.
b. stimulates the interstitial cells of the testes to secrete testosterone.
c. is secreted by the testes.
d. is responsible for an erection.
a. stimulates spermatogenesis by the prostate gland.
b. stimulates the interstitial cells of the testes to secrete testosterone.
c. is secreted by the testes.
d. is responsible for an erection.
Spermatogenesis:
a. all is applicable.
b. is accomplished by the seminiferous tubules.
c. occurs within the testes.
d. is testosterone-dependent.
a. all is applicable.
b. is accomplished by the seminiferous tubules.
c. occurs within the testes.
d. is testosterone-dependent.
Ligation of (tying off) the vas deferens:
a. prevents erection.
b. causes sterility.
c. prevents orgasm.
d. interferes with testosterone secretion and therefore causes feminization.
a. prevents erection.
b. causes sterility.
c. prevents orgasm.
d. interferes with testosterone secretion and therefore causes feminization.
After meiosis of sex cells, sperm and ova contain:
a. 1 chromosome.
b. 46 chromosomes.
c. 23 chromosomes.
d. 20 chromosomes.
a. 1 chromosome.
b. 46 chromosomes.
c. 23 chromosomes.
d. 20 chromosomes.
The fallopian tubes are:
a. the site at which the embryo implants.
b. the site of fertilization.
c. lined with hCG-secreting cells.
d. positioned so that they are not vulnerable to pelvic infections.
a. the site at which the embryo implants.
b. the site of fertilization.
c. lined with hCG-secreting cells.
d. positioned so that they are not vulnerable to pelvic infections.
A midcycle surge of LH is responsible for:
a. ejaculation
b. orgasm.
c. menstruation.
d. ovulation.
a. ejaculation
b. orgasm.
c. menstruation.
d. ovulation.
The corpus luteum secretes:
a. FSH and LH.
b. gonadotropins.
c. progesterone and smaller amounts of estrogen.
d. hCG.
a. FSH and LH.
b. gonadotropins.
c. progesterone and smaller amounts of estrogen.
d. hCG.
Lactation:
a. is also called parturition.
b. only refers to the secretion of colostrum.
c. refers to milk production by the mammary glands.
d. occurs in response to gonadotropins.
a. is also called parturition.
b. only refers to the secretion of colostrum.
c. refers to milk production by the mammary glands.
d. occurs in response to gonadotropins.
Oxytocin:
a. is also called lactogenic hormone.
b. is an adenohypophyseal hormone that causes myometrial contraction.
c. stimulates the mammary glands to produce milk.
d. is a neurohypophyseal hormone that participates in the milk let-down reflex.
a. is also called lactogenic hormone.
b. is an adenohypophyseal hormone that causes myometrial contraction.
c. stimulates the mammary glands to produce milk.
d. is a neurohypophyseal hormone that participates in the milk let-down reflex.
True statements about gonadotropins in the male include which of the following?
a. are aimed at the testes
b. include FSH and LH (ICSH)
c. stimulate sperm development and the secretion of androgen
d. all of the above
a. are aimed at the testes
b. include FSH and LH (ICSH)
c. stimulate sperm development and the secretion of androgen
d. all of the above
In the male, luteinizing hormone
a. is also called ICSH and stimulates the interstitial cells to secrete testosterone.
b. stimulates spermatogenesis.
c. causes emission.
d. causes orgasm.
a. is also called ICSH and stimulates the interstitial cells to secrete testosterone.
b. stimulates spermatogenesis.
c. causes emission.
d. causes orgasm.
The seminal vesicles and prostate gland
a. secrete gonadotropins.
b. secrete testosterone.
c. contribute to the formation of semen.
d. secrete reproductive hormones.
a. secrete gonadotropins.
b. secrete testosterone.
c. contribute to the formation of semen.
d. secrete reproductive hormones.
Estrogen and progesterone
a. are gonadotropins.
b. are secreted by the trophoblastic cells as they implant in the uterine wall.
c. are secreted by the ovaries.
d. exert their effects only on reproductive structures.
a. are gonadotropins.
b. are secreted by the trophoblastic cells as they implant in the uterine wall.
c. are secreted by the ovaries.
d. exert their effects only on reproductive structures.
In the nonpregnant state, the
a. corpus albicans becomes hormonally active, secreting estrogen and progesterone.
b. endometrium secretes hCG.
c. hormonal secretion of the corpus luteum gradually declines.
d. zygote becomes hormonally active.
a. corpus albicans becomes hormonally active, secreting estrogen and progesterone.
b. endometrium secretes hCG.
c. hormonal secretion of the corpus luteum gradually declines.
d. zygote becomes hormonally active.
Human chorionic gonadotropin (hCG)
a. promotes the maturation of the egg.
b. is responsible for female characteristics.
c. maintains the corpus luteum.
d. transforms the corpus luteum into the corpus albicans.
a. promotes the maturation of the egg.
b. is responsible for female characteristics.
c. maintains the corpus luteum.
d. transforms the corpus luteum into the corpus albicans.
The luteal phase of the ovarian cycle
a. is responsible for menstruation.
b. culminates in ovulation.
c. is dominated by the secretion of progesterone.
d. precedes the LH surge.
a. is responsible for menstruation.
b. culminates in ovulation.
c. is dominated by the secretion of progesterone.
d. precedes the LH surge.
Menstruation occurs in response to
a. an LH surge.
b. diminished plasma levels of estrogen and progesterone.
c. elevated plasma levels of hCG.
d. elevated plasma levels of FSH and LH.
a. an LH surge.
b. diminished plasma levels of estrogen and progesterone.
c. elevated plasma levels of hCG.
d. elevated plasma levels of FSH and LH.
Which of the following is not true of testosterone?
a. Classified as androgen
b. Secreted by the anterior pituitary gland
c. Is necessary for the maturation of sperm
d. Is responsible for most of the male secondary sex characteristics
a. Classified as androgen
b. Secreted by the anterior pituitary gland
c. Is necessary for the maturation of sperm
d. Is responsible for most of the male secondary sex characteristics
Which structure ejects both semen and urine?
a. Epididymis
b. Oviducts
c. Urethra
d. Vas deferens
a. Epididymis
b. Oviducts
c. Urethra
d. Vas deferens
The graafian follicle
a. matures under the influence of hCG.
b. is an ovarian structure.
c. implants in the endometrial lining.
d. secretes FSH and LH in an attempt to ripen an oocyte.
a. matures under the influence of hCG.
b. is an ovarian structure.
c. implants in the endometrial lining.
d. secretes FSH and LH in an attempt to ripen an oocyte.
The myometrium
a. is the uterine lining that is most responsive to gonadotropins.
b. is vascular smooth muscle necessary for erection and ejaculation.
c. is the uterine layer muscular layer of the uterus.
d. is the muscular layer involved in the milk let-down reflex.
a. is the uterine lining that is most responsive to gonadotropins.
b. is vascular smooth muscle necessary for erection and ejaculation.
c. is the uterine layer muscular layer of the uterus.
d. is the muscular layer involved in the milk let-down reflex.
Which of the following is true of lactation?
a. Prolactin is responsible for the milk let-down reflex.
b. Oxytocin participates in the milk let-down reflex.
c. Oxytocin and prolactin are gonadotropins.
d. It is stimulated and maintained by hCG.
a. Prolactin is responsible for the milk let-down reflex.
b. Oxytocin participates in the milk let-down reflex.
c. Oxytocin and prolactin are gonadotropins.
d. It is stimulated and maintained by hCG.
The follicular and luteal phases refer to events that occur within the
a. ovaries.
b. fallopian tubes.
c. testes.
d. uterus.
a. ovaries.
b. fallopian tubes.
c. testes.
d. uterus.
Which of the following is true with regard to the process of meiosis?
a. It is the type of cell division found in all cells except the ova and sperm.
b. It changes the chromosomal number from the haploid to the diploid number.
c. It reduces chromosomal number in sex cells from 46 to 23.
d. It is a type of cell division that produces two identical daughter cells.
a. It is the type of cell division found in all cells except the ova and sperm.
b. It changes the chromosomal number from the haploid to the diploid number.
c. It reduces chromosomal number in sex cells from 46 to 23.
d. It is a type of cell division that produces two identical daughter cells.
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