Question 1

The transition between the ________ and the ________ phases of the uterine cycle coincides with ________.

Accepted Answer

A)   follicular; luteal; a rise in basal body temperature
B)   proliferative; secretory; ovulation
C)   menstrual; proliferative; ovulation
D)   secretory; proliferative; selection of the dominant follicle
E)   proliferative; secretory; menstruation

Question 2

The implanting blastocyst "rescues" the corpus luteum by secreting:

Accepted Answer

A)   large quantities of FSH and LH.
B)   GnRH, which stimulates the pituitary gland to secrete FSH and LH.
C)   human chorionic gonadotropin (hCG) 
D)   progesterone and estrogen.
E)   cortisol.

Question 3

Many (10-25) antral follicles begin the process of development but only one will usually progress to the point of ovulation.

Accepted Answer

A) True 
 B)False

Question 4

One function of semen is to buffer the acidic secretions of the vagina.

Accepted Answer

A) True 
 B)False

Question 5

Erection of the penis is a result of vasodilation brought about by a reflex involving nonadrenergic, noncholinergic autonomic neurons.

Accepted Answer

A) True 
 B)False

Question 6

The follicular phase of the ovarian cycle coincides with which phase or phases of the uterine cycle?

Accepted Answer

A)   both the menstrual phase and the secretory phase
B)   the secretory phase
C)   both the follicular phase and the secretory phase
D)   both the proliferative phase and the secretory phase
E)   both the menstrual phase and the proliferative phase

Question 7

Conversion of spermatids to spermatozoa involves cell division.

Accepted Answer

A) True 
 B)False

Question 8

Meiosis results in germ cells with 23 maternal chromosomes in one daughter cell and 23 paternal chromosomes in the other.

Accepted Answer

A) True 
 B)False

Question 9

Luteinizing hormone stimulates testosterone secretion by the Leydig cells of the testes.

Accepted Answer

A) True 
 B)False

Question 10

Which is NOT a function of Sertoli cells?

Accepted Answer

A)   forming a barrier between the blood and developing germ cells
B)   secreting inhibin
C)   nourishing developing sperm
D)   converting estrogens into testosterone
E)   phagocytizing defective sperm

Question 11

Steroid hormones generally bind with receptors inside target cells and control the rate of formation of mRNAs that lead to the synthesis of proteins.

Accepted Answer

A) True 
 B)False

Question 12

Most of the primordial follicles a woman is born with eventually are ovulated.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following statements regarding the control of parturition is FALSE?

Accepted Answer

A)   Oxytocin secretion is stimulated by cervical dilation.
B)   Coordinated uterine contractions cause the cervix to dilate.
C)   Oxytocin decreases the expression of myometrial estrogen receptors.
D)   Prostaglandins stimulate myometrial contractions.
E)   Stretching of the myometrium is one signal that begins uterine contractions.

Question 14

Ejaculation of semen from the penis is caused by:

Accepted Answer

A)   a parasympathetic reflex that contracts the seminal vesicles, epididymis, and vas deferens.
B)   a somatic reflex that initiates sperm production and motility, and contracts skeletal muscle surrounding the vas deferens.
C)   voluntary relaxation of the internal urethral sphincter, and sympathetic stimulation of smooth muscle contraction in the walls of the ureters and the urethra.
D)   sympathetic nerve firing, which initiates smooth muscle contraction in the epididymis, vas deferens, ejaculatory ducts, prostate, and seminal vesicles.
E)   parasympathetic stimulation of smooth muscle in the ureters, urinary bladder, and urethra.

Question 15

Implantation of a blastocyst:

Accepted Answer

A)   normally occurs within the oviduct (fallopian tube) .
B)   normally begins around day 21 of the typical menstrual cycle.
C)   occurs within 24 hours of fertilization of the oocyte.
D)   takes place at a time in the typical menstrual cycle when estrogen concentration in the blood is higher than progesterone concentration in the blood.
E)   requires the presence of high concentrations of follicle-stimulating hormone (FSH) .

Question 16

Which of these bests describes colostrum?

Accepted Answer

A)   It is composed of dark-colored solid waste ejected from a fetus's bowels shortly after it is born.
B)   It is a hormone secreted by the hypothalamus that inhibits prolactin secretion.
C)   It is the watery remnant of breast milk that continues to be expelled from the breasts after a baby is weaned.
D)   It is a watery, protein-rich fluid secreted from maternal breasts after delivery of a baby.
E)   It is an estrogen-rich fluid that fills the antrum of a mature ovarian follicle.

Question 17

Which of the following statements about estrogens in females is FALSE?

Accepted Answer

A)   In low plasma concentration, estrogen inhibits pituitary secretion of LH and FSH.
B)   In high plasma concentration, estrogen stimulates pituitary sensitivity to GnRH.
C)   In the presence of high plasma concentration of progesterone, estrogen stimulates increased secretion of GnRH.
D)   Estrogen secretion is required for the LH surge.
E)   Estrogen stimulates follicular growth.

Question 18

Which is NOT true about the actions of progesterone?

Accepted Answer

A)   It increases contractions and activity of the fallopian tube smooth muscle and cilia.
B)   It induces thick, sticky mucus in the cervix.
C)   It inhibits the milk-inducing effects of prolactin.
D)   It increases body temperature.
E)   It exerts negative feedback on the hypothalamus and anterior pituitary.

Question 19

Progesterone increases the thickness of the myometrium in preparation for implantation.

Accepted Answer

A) True 
 B)False

Question 20

In the testis, spermatogenesis takes place in the seminiferous tubules and testosterone is produced by the Leydig cells.

Accepted Answer

A) True 
 B)False

Exam 17: Reproduction

Ejaculation of semen from the penis is caused by:

Correct AnswerverifiedShow Answer

Steroid hormones generally bind with receptors inside target cells and control the rate of formation of mRNAs that lead to the synthesis of proteins.

Correct AnswerverifiedShow Answer

Progesterone increases the thickness of the myometrium in preparation for implantation.

Correct AnswerverifiedShow Answer

Implantation of a blastocyst:

Correct AnswerverifiedShow Answer

Which is NOT true about the actions of progesterone?

Correct AnswerverifiedShow Answer

Most of the primordial follicles a woman is born with eventually are ovulated.

Correct AnswerverifiedShow Answer

Many (10-25) antral follicles begin the process of development but only one will usually progress to the point of ovulation.

Correct AnswerverifiedShow Answer

Which of these bests describes colostrum?

Correct AnswerverifiedShow Answer

Which of the following statements about estrogens in females is FALSE?

Correct AnswerverifiedShow Answer

The implanting blastocyst "rescues" the corpus luteum by secreting:

Correct AnswerverifiedShow Answer

The transition between the ________ and the ________ phases of the uterine cycle coincides with ________.

Correct AnswerverifiedShow Answer

Meiosis results in germ cells with 23 maternal chromosomes in one daughter cell and 23 paternal chromosomes in the other.

Correct AnswerverifiedShow Answer

One function of semen is to buffer the acidic secretions of the vagina.

Correct AnswerverifiedShow Answer

Luteinizing hormone stimulates testosterone secretion by the Leydig cells of the testes.

Correct AnswerverifiedShow Answer

Erection of the penis is a result of vasodilation brought about by a reflex involving nonadrenergic, noncholinergic autonomic neurons.

Correct AnswerverifiedShow Answer

Which of the following statements regarding the control of parturition is FALSE?

Correct AnswerverifiedShow Answer

In the testis, spermatogenesis takes place in the seminiferous tubules and testosterone is produced by the Leydig cells.

Correct AnswerverifiedShow Answer

Conversion of spermatids to spermatozoa involves cell division.

Correct AnswerverifiedShow Answer

Which is NOT a function of Sertoli cells?

Correct AnswerverifiedShow Answer

The follicular phase of the ovarian cycle coincides with which phase or phases of the uterine cycle?

Correct AnswerverifiedShow Answer

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The transition between the and the phases of the uterine cycle coincides with .

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