Deck 27: Human Reproduction, Sex, and Sexuality

Question 1

Sperm cells are produced in the

A) vas deferens.
B) penis.
C) urinary bladder.
D) testes.

Answer 1

testes.

Question 2

Sperm cells are moved out of the testes in the

A) seminiferous tubules.
B) fallopian tubes.
C) cervical canal.
D) vas deferens.

Answer 2

vas deferens.

Question 3

Sperm-carrying fluid from the human male is

A) called semen.
B) released on a twenty-eight-day cycle (approximately).
C) stored in the urinary bladder.
D) described by two of these answers.

Answer 3

called semen.

Question 4

Which of the following is NOT a part of the male human reproductive system?

A) seminiferous tubules
B) vas deferens
C) cervix
D) penis

Question 5

The structure that transports sperm cells from the epididymis to the urethra is the

A) vas deferens.
B) ductus arteriosus.
C) semen.
D) prostate tubules.

Question 6

Egg cells are fertilized in the

A) cervix.
B) vagina.
C) ovary.
D) oviduct.

Question 7

The structure that carries the egg cell from where it is produced to the uterus is the

A) uterine canal.
B) oviduct.
C) ductus ovalis.
D) vagina.

Question 8

When the egg leaves the oviduct, it normally passes directly into the

A) abdominal cavity.
B) ovary.
C) uterus.
D) vas deferens.

Question 9

The embryo develops into a fetus while it is within the

A) ovary.
B) cervix.
C) vagina.
D) uterus.

Question 10

Which of the following most closely describes the cervix?

A) a neck-like area of the ovary
B) a region between the uterus and vagina
C) a narrowed opening from the prostate gland
D) an opening from the vagina to the outside

Question 11

Sexuality is

A) the sexual anatomy of an individual.
B) the sex drive and related behaviors of an individual.
C) often different in different cultures.
D) All of the above are correct.

Question 12

The structure in which meiosis occurs (which results in the formation of eggs) is the

A) cervix.
B) ovary.
C) vagina.
D) uterus.

Question 13

Oogenesis means

A) egg formation.
B) formation of the female child.
C) production of nondisjunctive cells.
D) place where the human race originated.

Question 14

Which of these results in the production of only one gamete as a result of meiosis?

A) oogenesis
B) spermatogenesis
C) Both of these are correct.
D) Neither of these are correct.

Question 15

Oogenesis normally produces ____ gamete(s) from one germ cell.

A) one
B) two
C) three
D) four

Question 16

Which of the following statements is correct for both spermatogenesis and oogenesis?

A) They function, approximately, on a twenty-eight day cycle.
B) They each have two meiotic divisions.
C) They produce polar bodies.
D) All of these statements are correct for both processes.

Question 17

Persons who desire romantic and sexual relationships with those of the same gender are

A) homosexual.
B) intersexual.
C) heterosexual.
D) All of the above are correct.

Question 18

Orgasm involves

A) spasms of the muscles of the reproductive organs.
B) spasms of the general muscles of the body.
C) increase in heart rate.
D) All of the above are correct.

Question 19

One significant difference between spermatogenesis and oogenesis is that

A) females produce only one gamete during their lifetime.
B) males produce sperm cells only between thirteen and forty.
C) the size of resulting cells is different.
D) the placement of the gonads does not influence viability in males, but does in females.

Question 20

The differentiation of the sex of an embryo

A) occurs about month 4 of fetal development.
B) is determined by the presence or absence of the Y-chromosome and its genes.
C) occurs at conception.
D) is highly variable from one embryo to another.

Question 21

The time of menstrual flow, or period, in a normal human female occurs

A) at the same time as the egg is released from the ovary.
B) approximately two days before the egg is released from the ovary.
C) approximately two days after the egg is released from the ovary.
D) approximately two weeks after the egg is released from the ovary.

Question 22

At what point in the menstrual cycle is the egg released?

A) approximately day fourteen
B) fifth day after start of flow
C) when uterus wall is shed
D) after the corpus luteum is formed

Question 23

The discharge of blood during the human female's period indicates that the

A) egg is being released from the ovary.
B) lining of the uterus is being shed.
C) ovarian follicles have developed into the corpus luteum.
D) corpus luteum has developed into the ovarian follicle.

Question 24

The lining of the uterus is most vascularized (thick and filled with blood vessels)

A) at the onset of menstruation.
B) at the time of ovulation.
C) at the end of menses.
D) just before the follicle matures.

Question 25

Which of the following would be a secondary sexual characteristic?

A) testosterone produced by the testis
B) the development of a menstrual cycle
C) erection of the penis or clitoris
D) the different amount and location of body fat in men and women

Question 26

In most women's menstrual cycles, ovulation occurs

A) at the onset of the flow.
B) halfway through the cycle.
C) just after sexual intercourse.
D) just following the last cycle.

Question 27

The job of the placenta is primarily associated with

A) nourishment and waste removal.
B) separation of the layers of embryonic tissue.
C) protection of the fetus from infection.
D) development of the outermost tissue of the embryo.

Question 28

The location of the placenta is

A) in the vagina.
B) at the cervix of the uterus.
C) lining the oviduct.
D) in the uterus.

Question 29

The placenta is normally located in the

A) ovary.
B) fallopian tube.
C) uterus.
D) abdominal cavity.

Question 30

The placenta

A) conducts the mother's blood directly to the embryo.
B) is responsible for providing the nutritional needs of the embryo.
C) nourishes the egg while it is yet in the ovary.
D) is discharged from the body and rebuilt approximately every twenty-eight days.

Question 31

The menstrual cycle and ovulation are coordinated

A) so that ovulation occurs when the uterus has a thick lining.
B) because hormones produced by the uterus stimulate the ovary.
C) by changes in body temperature.
D) None of the above is correct.

Question 32

The stimulus for contractions of the uterus to bring about birth is the hormone

A) estrogen.
B) follicle stimulating hormone.
C) oxytocin.
D) luteotropic hormone.

Question 33

The process of fertilizing eggs outside the body is called

A) in vivo fertilization.
B) in vitro fertilization.
C) artificial insemination.
D) fertility testing.

Question 34

Fraternal twins

A) have exact copies of each other's DNA.
B) are usually of opposite sex.
C) are only as alike as any other siblings.
D) will usually occur at the first pregnancy.

Question 35

Fraternal twins

A) are the result of one fertilized egg dividing to become two individuals.
B) do not usually have the same DNA.
C) result from two eggs being fertilized by one sperm.
D) result from one egg being fertilized by two sperms.

Question 36

Fraternal twins

A) must be of the same sex.
B) can be of the same sex.
C) must be of different sexes.
D) are always of the same sex.

Question 37

Identical twins

A) are the result of one fertilized egg dividing to become two individuals.
B) do not usually have the same DNA.
C) result from two eggs being fertilized by one sperm.
D) result from one egg being fertilized by two sperms.

Question 38

Transgender individuals

A) often seek sex change (gender reassignment) surgery.
B) believe they are a sex different from what their body is.
C) often dress and behave as a gender different from what their body is.
D) All of the above are correct.

Question 39

An intrauterine device

A) is used to cause abortions.
B) prevent births.
C) is a permanent form of birth control.
D) All of the above are correct.

Question 40

Early cell division in an embryo is called

A) cleavage.
B) implantation.
C) fertilization.
D) meiosis.

Question 41

A stage in embryological development which is a solid ball of cells is a

A) gastrula.
B) fetus.
C) blastula.
D) morula.

Question 42

The stage of development after the morula stage is

A) implantation.
B) blastula.
C) fertilization.
D) gastrula.

Question 43

The onset of puberty

A) is typically earlier in girls than boys.
B) involves increased production of estrogen or testosterone.
C) causes changes in body structure.
D) All of the above are correct.

Question 44

Puberty begins with

A) the production of testosterone or estrogen.
B) an increase in the amount of follicle stimulating hormone.
C) the brain sensing the time is right.
D) All of these answers are true.

Question 45

The settling of an embryo into the lining of the uterus is called

A) fertilization.
B) cleavage.
C) menses.
D) implantation.

Question 46

All of the following are true of puberty EXCEPT

A) sex organs grow and mature.
B) males and females tend to go through puberty at the same age.
C) hormones cause changes in body structure.
D) eggs and sperm begin to be produced.

Question 47

Which of the following serves as a physical barrier to prevent the sperm cell from getting to the egg cell?

A) abortion
B) IUD
C) condom
D) spermicidal jelly

Question 48

The best contraceptive device to prevent the spread of sexually transmitted diseases is the

A) condom.
B) diaphragm.
C) IUD.
D) contraceptive pill.

Question 49

The fetal mammal is surrounded by the

A) amnion.
B) oviduct.
C) ovary.
D) All of these answers are true.

Question 50

The meiotic process in humans that results in the production of sperm is

A) oogenesis.
B) mitosis.
C) spermatogenesis.
D) polar body formation.

Question 51

During embryonic development the ovaries

A) produce oocytes.
B) produce estrogen.
C) release eggs.
D) produce progesterone.

Question 52

The seminal vesicles, prostate and bulbourethral glands,

A) produce semen.
B) cause ejaculation.
C) are secondary sex characteristics.
D) produce hormones.

Question 53

In females, the first polar body is formed during

A) meiosis I.
B) meiosis II.
C) ovulation.
D) fertilization.

Question 54

Spermatogenesis

A) occurs in the seminiferous tubules.
B) begins at birth.
C) involves one cell dividing into 4 by mitosis.
D) produces a few hundred cells per day.

Question 55

A healthy male will release ____ sperms during one ejaculation.

A) 300
B) 3,000
C) 30,000
D) 300,000,000

Question 56

Development of both the ovaries and testes are influenced by

A) progesterone.
B) estrogens.
C) follicle-stimulating hormone.
D) oxytocin.

Question 57

Which of the following is NOT true of the corpus luteum? The corpus luteum

A) develops from a follicle.
B) produces hormones.
C) is present during the entire menstrual cycle.
D) prevents the release of eggs.

Question 58

If sperm cells are not released by ejaculation,

A) they can be stored for weeks in the prostate.
B) they die and are absorbed into the body.
C) the man stops producing sperm.
D) prostate cancer will develop.

Question 59

During the menstrual cycle,

A) estrogen causes the lining of the uterus to grow.
B) progesterone causes the lining of the uterus to be shed.
C) follicle stimulating hormone causes the lining of the uterus to be shed.
D) None of the above is correct.

Question 60

Contraceptive pills work by

A) preventing ovulation.
B) preventing sperm from entering the fallopian tubes.
C) creating an acidic environment in the uterus in which sperm cannot survive.
D) speeding the onset of menopause.

Question 61

If a couple use the timing method (rhythm method) of birth control, about ______% of couples will become pregnant in a year.

A) 2
B) 10
C) 25
D) 50

Question 62

The least effective form of contraception listed below is/are

A) the rhythm method.
B) condoms.
C) contraceptive implants.
D) tubal ligation.

Question 63

RU 486 is a(n)

A) "abortion pill."
B) type of contraceptive implant.
C) sexually transmitted disease.
D) sex hormone.

Question 64

In humans, egg production (oogenesis) differs from sperm production (spermatogenesis) in that oogenesis

A) produces many more cells than spermatogenesis.
B) usually results in fertilization.
C) produces polar bodies.
D) occurs for the majority of a person's life.

Question 65

In humans, egg production (oogenesis) differs from sperm production (spermatogenesis) in that spermatogenesis

A) produces many more cells than oogenesis.
B) occurs on a monthly cycle.
C) produces polar bodies.
D) occurs for a short period of a person's life.

Question 66

Which of the following combinations of chromosomes would be typical of a human male?

A) two X-chromosomes
B) an X-and a Y-chromosome
C) 2 Y-chromosomes
D) None of these is correct.

Question 67

There are individuals who are missing one of their sex chromosomes and are designated as XO individuals. These individuals

A) develop as males.
B) develop as females.
C) are unusually tall.
D) are easily recognizable.

Question 68

The cells that become eggs that a woman ovulates at age 40 were initially produced

A) at puberty.
B) at her birth.
C) when she was a fetus.
D) about a month before ovulation.

Question 69

This hormone stimulates ovary and testes development, egg production in females, and sperm production in males.

A) follicle-stimulating hormone
B) prolactin
C) luteinizing hormone
D) estrogen

Question 70

This hormone causes the uterus to contract and the breasts to release milk.

A) androgens
B) oxytocin
C) estrogen
D) follicle-stimulating hormone

Question 71

Individuals who have partial or complete development of both male and female sex organs are

A) homosexual.
B) intersexual.
C) transgender.
D) All of the above are correct.

Question 72

It appears that the most important senses involved in human sexual attraction are

A) hearing and touch.
B) sight and smell.
C) taste and smell.
D) touch and smell.

Question 73

This procedure involves the cutting and tying off of the oviducts.

A) tubal ligation
B) vasectomy
C) C-section
D) contraception

Question 74

The seminal vesicles, prostate gland, and bulbourethral glands produce materials that

A) activate sperm.
B) make semen.
C) provide nourishment for sperm.
D) All of the above are correct.

Question 75

The way the pill works is by

A) preventing ovulation, not preventing a birth.
B) acting as a barrier to prevent the sperm from reaching the egg.
C) causing premature release of the egg.
D) creating irritation in the uterus that prevents implantation.

Question 76

The emergency contraceptive pill (ECP) works by

A) killing the embryo.
B) changing the pH of the uterus.
C) killing sperm.
D) preventing ovulation.

Question 77

In older men, the inability to get or keep an erection firm enough for sexual intercourse is usually the result of injury, disease, or the side effects of medication and is called

A) erectile dysfunction.
B) infertility.
C) sterility.
D) menopause.

Question 78

Menopause

A) involves changes in the sex hormones.
B) results in menstruation.
C) causes ovaries to produce more estrogen.
D) occurs only in men.