Question 1

Undescended testes cause infertility because

Accepted Answer

A) sperm development is impeded by the higher internal body temperature. 
B) there is too little testosterone. 
C) they undergo apoptosis, and can no longer produce sperm. 
D) they become entangled in the seminiferous tubules, which then degenerate. 
A) sperm development is impeded by the higher internal body temperature. 
B) there is too little testosterone. 
C) they undergo apoptosis, and can no longer produce sperm. 
D) they become entangled in the seminiferous tubules, which then degenerate.

Question 2

An increase in the level of FSH at approximately day 14 causes ovulation.

Accepted Answer

A) True 
 B)False

Question 3

Synapsis occurs during

Accepted Answer

A) prophase I. 
B) metaphase I. 
C) anaphase I. 
D) telophase I. 
A) prophase I. 
B) metaphase I. 
C) anaphase I. 
D) telophase I.

Question 4

In the reproductive cycle, estrogen ________, whereas progesterone ________.

Accepted Answer

A) stimulates erection of the clitoris; stimulates the uterine lining to become glandular 
B) ejects milk from the mammary glands; stimulates milk secretion 
C) stimulates uterine wall development; stimulates the uterine lining to become more glandular 
D) inhibits the release of FSH; stimulates the release of FSH 
A) stimulates erection of the clitoris; stimulates the uterine lining to become glandular 
B) ejects milk from the mammary glands; stimulates milk secretion 
C) stimulates uterine wall development; stimulates the uterine lining to become more glandular 
D) inhibits the release of FSH; stimulates the release of FSH

Question 5

The epididymis is a ________ and it ________.

Accepted Answer

A) compartment inside a testis; secretes testosterone and forms sperm 
B) stage of spermatogenesis; forms two sperm cells and semen 
C) tightly coiled tube on the outside of the testis; is the location for sperm maturation 
D) compartment that contains seminiferous tubules; ejaculates sperm 
A) compartment inside a testis; secretes testosterone and forms sperm 
B) stage of spermatogenesis; forms two sperm cells and semen 
C) tightly coiled tube on the outside of the testis; is the location for sperm maturation 
D) compartment that contains seminiferous tubules; ejaculates sperm

Question 6

A mutation affecting the cytoplasmic distribution among dividing daughter cells in female meiosis prevents the normal distribution between the secondary oocyte and the polar body. Instead, two identically sized daughter cells with the same amount of cytoplasm are produced after each division while polar bodies are still designated and disintegrated. Knowing the main function of the polar body, what effect might this mutation have?

Accepted Answer

A) Sperm will not be able to penetrate the egg. 
B) Oocytes with abnormal chromosome numbers will result and produce zygotes with further abnormal numbers. 
C) After fertilization, the zygote may not have enough organelles and nutrients to support further cell divisions. 
D) Embryos developed from the mutated secondary oocyte will lack the X chromosome. 
A) Sperm will not be able to penetrate the egg. 
B) Oocytes with abnormal chromosome numbers will result and produce zygotes with further abnormal numbers. 
C) After fertilization, the zygote may not have enough organelles and nutrients to support further cell divisions. 
D) Embryos developed from the mutated secondary oocyte will lack the X chromosome.

Question 7

About the time of ovulation, the anterior pituitary gland releases a surge of

Accepted Answer

A) estrogens. 
B) progesterone. 
C) LH. 
D) androgens. 
A) estrogens. 
B) progesterone. 
C) LH. 
D) androgens.

Question 8

Measles can inflame the testes, impairing fertility by destroying cells in the seminiferous tubules.

Accepted Answer

A) True 
 B)False

Question 9

Capacitation makes sperm tails whip more quickly.

Accepted Answer

A) True 
 B)False

Question 10

Primary oocyte production begins before birth.

Accepted Answer

A) True 
 B)False

Question 11

The ductus deferentia are muscular tubes, each about 25 centimeters long.

Accepted Answer

A) True 
 B)False

Question 12

During the first meiotic division

Accepted Answer

A) sperm and egg form. 
B) homologous chromosome pairs separate. 
C) homologous chromosome pairs join. 
D) the cell becomes diploid. 
A) sperm and egg form. 
B) homologous chromosome pairs separate. 
C) homologous chromosome pairs join. 
D) the cell becomes diploid.

Question 13

What would be true of the newly formed sex cells in a person possessing a mutation that completely prevents crossover?

Accepted Answer

A) The new cells would have less genetic variability because crossing over contributes to proper chromosome shape, so parts of the chromosome would be non-functional. 
B) The new cells would have less genetic variability because whole chromosomes would only be entirely maternal or paternal. 
C) The new cells would have more genetic variability because crossing over limits transmission of maternal and paternal genes. 
D) The new cells would contain abnormal chromosome numbers because crossing over ensures proper division. 
A) The new cells would have less genetic variability because crossing over contributes to proper chromosome shape, so parts of the chromosome would be non-functional. 
B) The new cells would have less genetic variability because whole chromosomes would only be entirely maternal or paternal. 
C) The new cells would have more genetic variability because crossing over limits transmission of maternal and paternal genes. 
D) The new cells would contain abnormal chromosome numbers because crossing over ensures proper division.

Question 14

The prostate gland is the size and shape of a(n)

Accepted Answer

A) horseshoe. 
B) pea. 
C) walnut or chestnut. 
D) apple. 
A) horseshoe. 
B) pea. 
C) walnut or chestnut. 
D) apple.

Question 15

A hysterosalpinogram measures or shows

Accepted Answer

A) the intensity of a woman's orgasm. 
B) the number of uterine tubes. 
C) whether or not a uterine tube is open. 
D) whether there is anything growing in the uterus. 
A) the intensity of a woman's orgasm. 
B) the number of uterine tubes. 
C) whether or not a uterine tube is open. 
D) whether there is anything growing in the uterus.

Question 16

The bulbourethral glands secrete

Accepted Answer

A) sperm. 
B) a mucus-like fluid. 
C) blood. 
D) sweat. 
A) sperm. 
B) a mucus-like fluid. 
C) blood. 
D) sweat.

Question 17

Male reproductive functions are controlled mainly by hormones from the hypothalamus and

Accepted Answer

A) posterior pituitary and adrenal glands. 
B) anterior pituitary and adrenal glands. 
C) posterior pituitary gland and testes. 
D) anterior pituitary gland and testes. 
A) posterior pituitary and adrenal glands. 
B) anterior pituitary and adrenal glands. 
C) posterior pituitary gland and testes. 
D) anterior pituitary gland and testes.

Question 18

The last fluid expelled from the urethra during ejaculation comes from the

Accepted Answer

A) testes. 
B) bulbourethral gland. 
C) prostate gland. 
D) seminal vesicles. 
A) testes. 
B) bulbourethral gland. 
C) prostate gland. 
D) seminal vesicles.

Question 19

The average length of the epididymis is

Accepted Answer

A) 1 meter. 
B) 3 meters. 
C) 6 meters. 
D) 9 meters. 
A) 1 meter. 
B) 3 meters. 
C) 6 meters. 
D) 9 meters.

Question 20

Tamoxifen and raloxifene act by

Accepted Answer

A) blocking estrogen receptors. 
B) activating progesterone receptors. 
C) breaking up cancer cell DNA. 
D) depriving cancer cell of growth factors. 
A) blocking estrogen receptors. 
B) activating progesterone receptors. 
C) breaking up cancer cell DNA. 
D) depriving cancer cell of growth factors.

Exam 22: Reproductive Systems

Undescended testes cause infertility because

An increase in the level of FSH at approximately day 14 causes ovulation.

Synapsis occurs during

In the reproductive cycle, estrogen ________, whereas progesterone ________.

The epididymis is a ________ and it ________.

About the time of ovulation, the anterior pituitary gland releases a surge of

Measles can inflame the testes, impairing fertility by destroying cells in the seminiferous tubules.

Capacitation makes sperm tails whip more quickly.

Primary oocyte production begins before birth.

The ductus deferentia are muscular tubes, each about 25 centimeters long.

During the first meiotic division

What would be true of the newly formed sex cells in a person possessing a mutation that completely prevents crossover?

The prostate gland is the size and shape of a(n)

A hysterosalpinogram measures or shows

The bulbourethral glands secrete

Male reproductive functions are controlled mainly by hormones from the hypothalamus and

The last fluid expelled from the urethra during ejaculation comes from the

The average length of the epididymis is

Tamoxifen and raloxifene act by

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Divisions of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

In the reproductive cycle, estrogen , whereas progesterone .

The epididymis is a and it .