Deck 17: The Reproductive System

Question 1

What is the haploid number of chromosomes in human cells?

A)23
B)46
C)23 pair
D)Both 46 and 23 pair

Answer 1

A

Question 2

Gametes are exact copies of body cells,but with only half the number of chromosomes.

Answer 2

False

Question 3

Reproductive organs are called gametes.

Answer 3

False

Question 4

What is the new cell formed from the union of egg and sperm called and how many chromosomes does it have?

A)Zygote with 23 chromosomes
B)Zygote with 23 pairs of chromosomes
C)Egg with 46 chromosomes
D)Tetrad with 23 pairs of chromosomes

Question 5

Sex hormones affect only reproductive organs.

Question 6

The testes

A)produce gametes.
B)secrete hormones.
C)produce gametes and secrete hormones.

Question 7

How many cells are produced by meiosis?

A)One
B)Two
C)Three
D)Four

Question 8

What is the diploid number of chromosomes in human body cells?

A)23
B)46
C)23 pairs
D)Both 46 and 23 pairs

Question 9

Why do the testes descend into the scrotum?

A)There is not sufficient room in the abdomen.
B)Abdominal temperature is too low to produce hormones.
C)Abdominal temperature is too high to produce viable sperm.
D)There is no known reason.

Question 10

Which of the following is NOT a function of the female reproductive system?

A)Produces female sex hormones for feminization and pregnancy
B)The uterus produces and secretes ova
C)Provides a place for a fertilized egg to develop in the uterus
D)Receiving the male penis and removing of menstrual flow through the vagina

Question 11

The development of a child into a sexually mature young adult is called

A)metamorphosis.
B)maturation.
C)puberty.
D)menarche.

Question 12

Meiosis

A)produces diploid cells.
B)reduces chromosome number to 23.
C)involves the repair and growth of all body cells.
D)All apply.

Question 13

A chromosome is made up of two ______ attached at the centromere.

A)genes
B)chromatids
C)spindles
D)centrosomes

Question 14

When DNA is distributed diffusely throughout the nucleus,it is called ______.When it is organized into condensed structures,it is called ______.

A)genes;chromatin
B)nucleic acids;chromosomes
C)chromatin;chromosomes
D)chromosomes;chromatin

Question 15

How many cell divisions occur in meiosis?

A)None
B)One
C)Two
D)23

Question 16

Which of the following is NOT a function of the male reproductive system?

A)Produces sperm in the testes
B)Produces male sex hormones for masculinization
C)Provides for the maturing of sperm in the testes
D)Delivers sperm to the female vagina with the penis

Question 17

The close grouping of homologous chromosomes in prophase in meiosis I is called a

A)zygote.
B)tetrad.
C)gamete.
D)chromatid.

Question 18

What is the function of interstitial cells of the testes?

A)Produce immature sperm
B)Produce androgens
C)Produce semen
D)All apply.

Question 19

The most important androgen is

A)testosterone.
B)semen.
C)prostaglandins.
D)progesterone.

Question 20

The primary sex organs of a male are the

A)scrotum.
B)ovaries.
C)testes.
D)penis.

Question 21

What type of cell is found in the seminiferous tubules?

A)Spermatogonia
B)Sustentacular cells
C)Interstitial cells
D)Both spermatogonia and sustentacular cells

Question 22

The __________ is not part of the male duct system.

A)epididymis
B)vas deferens
C)bulbourethral gland
D)urethra

Question 23

What is produced by the process of spermatogenesis?

A)2 haploid spermatids
B)2 diploid spermatids
C)4 haploid spermatids
D)4 diploid spermatids

Question 24

The sperm's acrosome contains

A)the chromosomes.
B)the mitochondria.
C)enzymes.
D)the tail.

Question 25

What type of cell acts to support,nourish,and regulate the development of sperm?

A)Spermatogonia
B)Sustentacular cells
C)Interstitial cells
D)Both spermatogonia and sustentacular cells

Question 26

The sperm's midpiece contains

A)the chromosomes.
B)the mitochondria.
C)enzymes.
D)the tail.

Question 27

The vas deferens joins a duct from the seminal vesicle to form the

A)urethra.
B)prostate gland.
C)ejaculatory duct.
D)spermatic cord.

Question 28

Human sperm

A)have twenty-three chromosomes.
B)are diploid.
C)secrete testosterone.
D)All apply.

Question 29

In some males,the opening through which the testes descend into the scrotum fails to close.This is termed a(n)

A)inguinal hernia.
B)cryptorchidism.
C)impotence.
D)infertility.

Question 30

Spermatogenesis

A)occurs in the interstitial cells.
B)is a form of meiosis.
C)occurs at internal body temperature.
D)All apply.

Question 31

What does seminal fluid provide?

A)The correct pH for sperm
B)Fructose for energy
C)Enhance sperm motility
D)All apply.

Question 32

The ejaculatory ducts join the _______ in the prostate gland.

A)ureters
B)spermatic cord
C)urethra
D)None apply.

Question 33

Which of the following is NOT part of a mature sperm?

A)Head
B)Midpiece
C)Body
D)Tail

Question 34

Which of the following is NOT a gland that secretes seminal fluid?

A)Urinary bladder
B)Prostate gland
C)Bulbourethal glands
D)Seminal vesicles

Question 35

The __________ conducts sperm into the abdominal cavity through the inguinal canal.

A)epididymis
B)vas deferens
C)bulbourethral gland
D)urethra

Question 36

Which describes these terms in the correct order of sperm development?

A)Primary spermatocyte,secondary spermatocyte,spermatogonium
B)Spermatogonium,primary spermatocyte,secondary spermatocyte
C)Secondary spermatocyte,primary spermatocyte,spermatogonium

Question 37

The __________ stores sperm and allows them to mature.

A)epididymis
B)vas deferens
C)bulbourethral gland
D)urethra

Question 38

The process of sperm production is called

A)spermatogenesis.
B)spermiogenesis.
C)oogenesis.
D)None apply.

Question 39

What structure contains the vas deferens,and the testicular artery,vein,and nerve?

A)Spermatic cord
B)Inguinal canal
C)Epididymis
D)Urethra

Question 40

Which describes cryptorchidism?

A)Infertility
B)Twisting of the spermatic cord
C)Failure of the testes to descend from the abdomen
D)Impotence

Question 41

Which of the following is NOT a function of testosterone?

A)Growth of facial,axillary,and pubic hair
B)Increase in secretion of oil and sweat glands
C)Decrease in the size of the larynx
D)Increased muscle strength

Question 42

What does the urethra pass through in the penis?

A)Corpus spongiosum
B)Corpora cavernosa
C)Glans penis
D)Prepuce

Question 43

Which of the following produces the gonadotropic hormones?

A)Hypothalamus
B)Testis
C)Anterior pituitary gland
D)All apply.

Question 44

Which gland secretes a mucus-like fluid that helps lubricate the end of the penis for sexual intercourse?

A)Prostate gland
B)Seminal vesicles
C)Bulbourethral glands
D)All apply

Question 45

Which of the following promotes production of testosterone by the interstitial cells?

A)LH
B)FSH
C)GnRH
D)Inhibin

Question 46

Which male gland is located behind the urinary bladder and secretes an alkaline fluid with fructose and prostaglandins?

A)Bulbourethral glands
B)Cowper's glands
C)Prostate
D)Seminal vesicles

Question 47

Which of the following is NOT a male secondary sex characteristic?

A)Maturation of the testes
B)Body hair
C)Possible acne and body odor
D)Deep voice

Question 48

Which of the following stimulates spermatogenesis in the seminiferous tubules?

A)LH
B)FSH
C)Testosterone
D)Inhibin

Question 49

LH and FSH are

A)sex hormones.
B)gonadotropic hormones.
C)only in females.
D)All apply.

Question 50

What structure is removed from the penis during circumcision?

A)Root
B)Prepuce
C)Glans penis
D)Corpora cavernosa

Question 51

The release of semen from the penis is called

A)incontinence.
B)emission.
C)expulsion.
D)refraction.

Question 52

Which of the following is INCORRECT about erection?

A)Autonomic nerves release nitric oxide.
B)CGMP is produced that causes artery walls to relax.
C)Arteries entering the penis constrict.
D)Veins that exit the penis are compressed.

Question 53

Which of the following is NOT part of the male sexual response?

A)Erection
B)Ejaculation
C)Refractory period
D)Urination

Question 54

Which are the external genitals of the male?

A)Penis and prostate
B)Scrotum and testes
C)Testes and penis
D)Penis and scrotum

Question 55

Gonadotropin-releasing hormone (GnRH)is secreted by the

A)anterior pituitary gland.
B)interstitial cells.
C)bulbourethral glands.
D)hypothalamus.

Question 56

Which of the following is involved with the functioning of the testes?

A)Hypothalamus
B)Anterior pituitary gland
C)Gonadotropic hormones
D)All apply.

Question 57

Gonadotropin-releasing hormone (GnRH)causes

A)the production of testosterone.
B)the secretion of FSH and LH.
C)lactation.

Question 58

Which male gland encircles the urethra and secretes a fluid that enhances sperm motility?

A)Cowper's glands
B)Seminal vesicles
C)Prostate
D)Bulbourethral glands

Question 59

Testosterone

A)matures the penis and testes.
B)is responsible for male secondary characteristics.
C)causes oil glands to secrete.
D)All apply.

Question 60

The primary sex organ(s)in females is (are)

A)fallopian (uterine)tubes.
B)ovaries.
C)uterus.
D)All apply.

Question 61

Where does oogenesis occur?

A)In the corpus luteum
B)In the follicle
C)In the epididymis
D)In the uterus

Question 62

The process of forming an ovum is called

A)mitosis.
B)oogenesis.
C)meiosis.
D)both oogenesis and meiosis.

Question 63

Girls are born with _____ follicles.

A)no
B)very few
C)300,000 - 400,000
D)1,000,000 - 2,000,000

Question 64

A Pap smear is a scraping of cells from the

A)cervix.
B)vagina.
C)endometrium.
D)ovaries.

Question 65

A pregnancy that occurs outside the uterus is called

A)implantation.
B)ectopic.
C)gestation.
D)oogenesis.

Question 66

Once a follicle releases an egg,it becomes a

A)vesicular follicle.
B)corpus luteum.
C)zona pellucida.
D)corpus albicans.

Question 67

The ligament that holds the upper ovary to the pelvic wall is the ______ ligament.

A)ovarian
B)broad
C)suspensory

Question 68

Follicles are found in

A)the ovaries.
B)the testes.
C)the ovaries and testes.
D)neither the ovaries nor testes.

Question 69

A corpus albicans is

A)the inviable product of oogenesis.
B)the remnant of a follicle right after ovulation.
C)the remnant of a corpus luteum.
D)part of the vulva.

Question 70

Which layer of the uterus varies according to the monthly reproductive cycle?

A)Endometrium
B)Myometrium
C)Perimetrium
D)All apply.

Question 71

Where does fertilization of an egg usually occur?

A)Pelvic cavity
B)Uterus
C)Vagina
D)Uterine tubes

Question 72

The corpus luteum forms from the follicle after ovulation.

Question 73

Ovulation is described as the

A)fusion of an oocyte and sperm.
B)release of a secondary oocyte from a follicle.
C)burrowing of an embryo into the endometrium.
D)discharge of blood and tissue from the uterus.

Question 74

The released ovum has completed meiosis.

Question 75

Which of the following is NOT part of the vulva?

A)Clitoris
B)Mons pubis
C)Labia majora
D)Vagina

Question 76

The inferior part of the uterus is called the

A)vagina.
B)cervix.
C)fimbriae.
D)labia majora.

Question 77

A mature follicle is called a

A)vesicular (Graafian)follicle.
B)primary follicle.
C)secondary follicle.
D)corpus luteum.

Question 78

What nonviable cell is produced by oogenesis?

A)Ovum
B)Polar body
C)Follicle
D)Corpus luteum

Question 79

Implantation occurs in the

A)uterine (Fallopian)tube.
B)endometrium.
C)myometrium.
D)vagina.

Question 80

What structure(s)act to draw a released ovum into the uterine tube?

A)Follicle
B)Corpus luteum
C)Fimbriae
D)Zona pellucida