Deck 4: Mens Bodies

Question 1

Men's reproductive anatomy is _______ women's because _______.

A) similar to; both sexes begin life similarly
B) simpler than; external organs must be simpler than internal organs
C) simpler than; men do not get pregnant
D) more complicated than; men's reproductive parts change much more rapidly than women's do.
E) more complicated than; external organs must be more complex than internal organs

Answer 1

C

Question 2

Developmentally, the penis is most similar to the _______; functionally, it is most similar to the _______.

A) clitoris; clitoris
B) vagina; clitoris
C) clitoris; clitoris, urethra, and vagina
D) clitoris, urethra, and vagina; clitoris
E) vagina; vagina

Answer 2

C

Question 3

An incision along the top of the foreskin is called

A) episiotomy.
B) subincision.
C) circumcision.
D) superincision.
E) penile piercing.

Answer 3

D

Question 4

Which of the following statements about the foreskin is false?

A) It is loose skin.
B) It covers the shaft of the penis.
C) In adults, it can readily be pulled back.
D) It is cylindrical in shape.
E) All of the above are true.

Question 5

Circumcision is an ancient practice that is religiously prescribed for

A) Catholics.
B) Protestants.
C) Muslims and Jews.
D) atheists.
E) married men.

Question 6

Circumcision of male infants in America is most common among

A) African-Americans.
B) Hispanics.
C) Chinese Americans.
D) non-Hispanic white Americans.
E) American Indians.

Question 7

Which of the following is not a recognized benefit of circumcision?

A) Improvement in sexual sensation
B) Childhood protection against urinary tract infection
C) Partial protection against infection with some STDs
D) Hygiene/cleanliness
E) Partial protection of female partners against cervical cancer

Question 8

The current medical consensus among American pediatricians is that

A) circumcision does more harm than good and should be stopped.
B) circumcision does more good than harm and should be performed.
C) there is not sufficient evidence that circumcision's benefits outweigh its costs.
D) circumcision should be performed on infants, provided it is done with anesthesia.
E) circumcision should only be performed when a person reaches adulthood and can provide legal consent.

Question 9

Which of the following statements about circumcised males (as opposed to uncircumcised males) is false?

A) They are more susceptible to HIV infection.
B) They have a reduction in urinary tract infections.
C) They have a reduced incidence of ulcerative STDs.
D) They have a reduction in HPV infections.
E) They have a lower incidence of penile cancers.

Question 10

A foul-smelling substance that can build up under the foreskin of the penis is called

A) prostatitis.
B) seminal fluid.
C) prostatic fluid.
D) bulbourethral fluid.
E) smegma.

Question 11

The corpora cavernosa are responsible for _______; the corpus spongiosum causes _______.

A) erection of the penile glans; erection of the penile shaft
B) urinary capacity; expulsion of semen
C) expulsion of semen; urinary capacity
D) erection of the penile shaft; erection of the penile glans
E) None of the above

Question 12

The root of the penis attaches to the pubic symphysis via the

A) frenulum.
B) glans.
C) suspensory ligament.
D) prepuce.
E) vas deferens.

Question 13

The rigidity and stiffness of the erect penis are due mainly to blood flowing into the

A) corpora cavernosa.
B) corpus spongiosum.
C) penile bones.
D) pelvic cavity.
E) suspensory ligament.

Question 14

The opening of the urethra is known as the

A) perineum.
B) meatus.
C) glans.
D) frenulum.
E) prostate.

Question 15

_______ disease causes an unnatural curvature of an erect penis.

A) PSA
B) Phimosis
C) Peyronie's
D) Testicular
E) Prostatitis

Question 16

_______ is the inability to retract the foreskin to expose the glans penis.

A) PSA
B) Phimosis
C) Peyronie's disease
D) Prostatitis
E) Benign prostatic hyperplasia

Question 17

The rim of the glans penis is called the

A) corona.
B) frenulum.
C) prepuce.
D) urethra.
E) foreskin.

Question 18

_______ is inflammation of the glans penis.

A) Phimosis
B) Paraphimosis
C) Peyronie's disease
D) Balanitis
E) Penile cancer

Question 19

The most erotically sensitive parts of the penis are the _______ and the _______.

A) frenulum; corona
B) frenulum; shaft
C) urethra; corona
D) urethra; shaft
E) urethra; frenulum

Question 20

Which of the following problems is equally common among circumcised and uncircumcised men?

A) Balanitis
B) Phimosis
C) Paraphimosis
D) Peyronie's disease
E) Smegma buildup

Question 21

In the penis, the male urethra is contained within the

A) fallopian tubes.
B) corpora cavernosa.
C) vas deferens.
D) prostate gland.
E) corpus spongiosum.

Question 22

Which of the following is most predictive of a man's erect penis length?

A) His overall body size
B) The length of his unstretched flaccid penis
C) The length of his stretched flaccid penis
D) The width of his unstretched flaccid penis
E) The width of his erect penis.

Question 23

What percentage of heterosexual men are satisfied with the size of their penis?

A) 10%
B) 25%
C) 40%
D) 55%
E) 80%

Question 24

What percentage of heterosexual women are satisfied with the size of their partner's penis?

A) 24%
B) 44%
C) 54%
D) 74%
E) 84%

Question 25

Which of the following statements about surgical procedures to augment the size of the penis is true?

A) A man who chooses this surgery usually does so because his female partners are dissatisfied with his penis size.
B) A man who chooses penis augmentation usually does so because of his own dissatisfaction with his size.
C) Penis augmentation is more effective than psychotherapy at reducing men's anxieties about their penis size.
D) Both a and b
E) Both b and c

Question 26

A penis fracture

A) is a fracture of the bone that runs through the middle of the penis.
B) most commonly occurs during oral sex due to deep thrusting.
C) is a break in the tunica albuginea.
D) is a common, minor, and temporary condition.
E) occurs most often in a nonsexual context.

Question 27

Epidemics of delusional penile retraction are called

A) koro.
B) schizophrenia.
C) Oedipal syndrome.
D) Electra complex.
E) neuroses.

Question 28

The structure that completely surrounds the male urethra as it exits the bladder is the

A) Cowper's gland.
B) vas deferens.
C) prostate gland.
D) seminal vesicles.
E) bulbourethral gland.

Question 29

The smooth muscle in the scrotum that regulates the temperature of the testes by contracting is the

A) frenulum.
B) fascia.
C) cilia.
D) tunica albuginea.
E) dartos.

Question 30

The _______ is a bundle of structures that connect the testes with organ systems within the abdominal cavity.

A) epididymis
B) tunica albuginea
C) tunica vaginalis
D) spermatic cord
E) seminal vesicle

Question 31

Sperm is produced in the _______ starting at _______.

A) epididymis; birth
B) seminiferous tubules; puberty
C) inguinal canal; birth
D) cremaster muscle; puberty
E) epididymis; puberty

Question 32

The spermatic cord is important to all of the following except

A) regulating testis temperature.
B) transferring sperm.
C) supplying the testis with blood.
D) communication between the two testes.
E) supplying the testis with nerves.

Question 33

All of the following contribute to ejaculatory fluid except

A) the prostate gland.
B) the bulbourethral glands.
C) the seminal vesicles.
D) the seminiferous tubules.
E) the cremaster muscle.

Question 34

Which of the following processes is involved in both sperm and oocyte production?

A) Temperature regulation
B) Meiosis
C) Prenatal onset of production
D) Both a and b
E) All of the above

Question 35

Another term for Leydig cells is

A) diploid cells.
B) Sertoli cells.
C) sperm.
D) interstitial cells.
E) haploid cells.

Question 36

Spermatogenesis occurs within _______ cells that line the seminiferous tubules.

A) tunica
B) cremaster
C) Leydig
D) prostate
E) Sertoli

Question 37

A(n) _______ is surgical removal of the testis.

A) orchiectomy
B) hysterectomy
C) circumcision
D) torsion
E) oopherectomy

Question 38

A _______ is a collection of fluid in the membrane-lined space surrounding a testicle.

A) hydrocele
B) varicocele
C) torsion
D) phimosis
E) superincision

Question 39

A(n) _______ is an enlargement of the veins that drain the testes.

A) hydrocele
B) orchitis
C) varicocele
D) torsion
E) phimosis

Question 40

Another term for Cowper's glands is

A) vas deferens.
B) seminal vesicles.
C) prostate glands.
D) epididymis.
E) bulbourethral glands.

Question 41

Treatment for prostate cancer may cause sexual dysfunction in men because

A) surgery to remove the prostate may injure nerves necessary for erection.
B) hormonal treatment lowers sex drive and function.
C) the prostate makes hormones necessary for erection.
D) Both a and b
E) Both b and c

Question 42

Components of semen are known to serve all the following functions except

A) protecting sperm from acidity.
B) energizing the sperm's movement.
C) fertilization.
D) coagulation.
E) causing sperm to compete by killing each other.

Question 43

Sperm account for about _______% of the total volume of semen.

A) 0.5
B) 1
C) 5
D) 10
E) 25

Question 44

The part of each spermatozoon that contains enzymes necessary for fertilization of an ovum is the

A) flagellum.
B) acrosome.
C) midpiece.
D) mitochondria.
E) seminal plasma.

Question 45

Semen contains the sugar _______, which sperm use as an energy source.

A) fructose
B) sucrose
C) lactose
D) maltose
E) fibrinogen

Question 46

The _______ of the sperm contains mitochondria and provides energy.

A) midpiece
B) acrosome
C) flagellum
D) tail
E) seminal fluid

Question 47

The prostate gland contributes _______% of the volume of semen.

A) 0.1
B) 0.7
C) 3
D) 30
E) 70

Question 48

_______ protect(s) sperm from the acidic environment of the vagina.

A) Acids
B) Sugars
C) Buffers
D) Enzymes
E) Fibrinogen

Question 49

_______ are sensory nerve endings found exclusively in the penis and clitoris.

A) Fascia
B) Pudendal nerves
C) Genital end-bulbs
D) Pelvic nerves
E) Spinal reflexes

Question 50

Action of _______ nerve fibers maintains the flaccid state of the penis.

A) parasympathetic
B) sympathetic
C) ganglionic
D) preganglionic
E) postganglionic

Question 51

A consequence of the fact that erection can be mediated by a spinal reflex is that

A) men paralyzed with high-level spinal injuries can still get erections.
B) direct stimulation of the penis can sometimes cause erection no matter what a man is thinking.
C) erection can occur when a man sees an attractive partner.
D) Both a and b
E) All of the above

Question 52

A synapse between an axon and a muscle fiber is called a

A) synaptic cleft.
B) neuromuscular junction.
C) dorsal horn.
D) ventral horn.
E) dorsal root.

Question 53

_______ fibers carry signals away from the CNS.

A) Efferent
B) Afferent
C) Ganglionic
D) Preganglionic
E) Postganglionic

Question 54

In the nervous system, genital arousal progresses from

A) genital end-bulbs to the pudendal nerve to the spinal cord to the pelvic nerves to the genitals.
B) genital end-bulbs to the genitals to the pudendal nerve to the spinal cord to the brain.
C) genitals to the pelvic nerve to the spinal cord to the pudendal nerve to the brain.
D) genitals to the pudendal nerve to the spinal cord to the brain.
E) None of the above

Question 55

When the penis is _______, activity is high in the sympathetic fibers; when the penis is _______, activity is high in the parasympathetic fibers.

A) immature, mature
B) erect; flaccid
C) large; small
D) round; slender
E) flaccid; erect

Question 56

Which of the following is active during male orgasm/ejaculation?

A) The cremaster muscle
B) The sympathetic nervous system
C) The ischiocavernosus muscle
D) Both a and c
E) All of the above

Question 57

The _______ limits the expansion of the corpora cavernosa during erection.

A) corpus spongiosum
B) ischiocavernosus muscle
C) bulbospongiosus muscle
D) urethra
E) tunica albuginea

Question 58

Which of the following is the correct sequence in the process of a man's erection?

A) Nerve impulses from the sympathetic nervous system cause the release of norepinephrine, which causes the contraction of smooth muscle.
B) The release of nitric oxide causes blood flow into the sinusoids, closing off veins from the sinusoids.
C) Increased activity of sympathetic fibers causes an increase in the activity of parasympathetic fibers.
D) Ongoing contraction of the smooth muscle of the arterioles causes restriction of blood flow into the sinusoids.
E) None of the above

Question 59

An erection is caused by the flow of

A) blood into the sinusoids.
B) blood out of the corpus spongiosum.
C) blood into the tunica albuginea.
D) nitric oxide into the sinusoids.
E) nitric oxide out of the tunica albuginea.

Question 60

Onuf's nucleus is larger and contains more _______ neurons in men than in women.

A) sensory
B) motor
C) inter
D) tactile
E) sympathetic

Question 61

The neurotransmitter _______ is responsible for the contraction of striated muscles involved in erections.

A) GABA
B) serotonin
C) nitric oxide
D) dopamine
E) acetylcholine

Question 62

Anatomical differences between males and females are referred to as

A) sexual dimorphisms.
B) erectile potentials.
C) ejaculatory potentials.
D) sexual response variations.
E) sex-normal distributions.

Question 63

The brain region important for regulating erections is the

A) locus coeruleus.
B) medulla.
C) pons.
D) hypothalamus.
E) pituitary

Question 64

Which of the following provides evidence for the role of the brain in sexual arousal?

A) Direct stimulation of the penis causes an erection.
B) Listening to an erotic story causes sexual arousal.
C) Erections occur during REM sleep.
D) Both a and b
E) Both b and c

Question 65

Nocturnal erections are controlled from a center in the pons called the

A) Cowper's gland.
B) hypothalamus.
C) medulla.
D) locus coeruleus.
E) cortex.

Question 66

Which of the following is not a component of both the male and the female orgasm?

A) Erection
B) Ejaculation of gametes
C) Excitement
D) Vasocongestion
E) Arousal

Question 67

Each contraction during ejaculation lasts about

A) 0.001 seconds.
B) 0.01 seconds.
C) 0.1 seconds
D) 1 second.
E) 10 seconds.

Question 68

Which of the following statements about cultural attitudes toward nudity is true?

A) Such attitudes are culturally variable.
B) Many cultures are permissive toward display of the genitals.
C) Most societies tend to be more tolerant of female nudity than of male nudity.
D) Both a and c
E) All of the above

Question 69

Which of the following is the correct use of the PlastiBell?

A) It is used during a digital rectal exam.
B) It can be used to perform neonatal circumcision.
C) Sometimes men use it to help maintain an erection.
D) It is a type of prosthetic used after testicular surgery.
E) It is a device used to surgically lengthen a penis.

Question 70

Which of the following is known to be reduced by male circumcision?

A) Some sexually transmitted diseases
B) Cervical cancer
C) Urinary tract infections during infancy
D) Both a and c
E) All of the above

Question 71

The glans of the penis is filled by the

A) corpus cavernosum.
B) urethral sphincter.
C) corpus spongiosum.
D) os penis.
E) vas deferens.

Question 72

The fibrous capsule surrounding the corpus cavernosa is called the

A) urethral meatus.
B) cremaster muscle.
C) tunica vaginalis.
D) scrotal sling.
E) tunica albuginea.

Question 73

The frenulum

A) is very sensitive.
B) is on the underside of the penis.
C) runs between the glans and the shaft.
D) All of the above
E) None of the above

Question 74

A friend tells you he has swelling and inflammation of the head of his penis. Your advice for him is to

A) see his doctor; he may need to wash his penis more often and apply an antibiotic cream.
B) see his doctor; he will likely need minor surgery.
C) see his doctor; he will need to stop masturbating for a while.
D) ignore it; it's common and will correct itself quickly.
E) see his doctor; if untreated, he could become infertile.

Question 75

Koro is defined as

A) the delusional idea that the scrotum is shrinking up into the body cavity.
B) delusional penile retraction.
C) the shrinkage of a penis that occurs with age.
D) the belief that a penis is too small for successful vaginal penetration.
E) the belief that an erection cannot be achieved in some circumstances.

Question 76

The spermatic cord has a sheetlike covering and a layer of striated muscle tissue known as the

A) vas deferens.
B) cremaster muscle.
C) tunica vaginalis.
D) tunica muscle.
E) rete testes.

Question 77

In human males, spermatogenesis occurs

A) in the testes, during fetal life.
B) in the penis, up to the time of puberty.
C) in the testes, starting at puberty.
D) in the penis, throughout life.
E) in the scrotum, prior to puberty.

Question 78

Sperm develop from _______ cells and are embedded in _______ cells.

A) stem; Leydig
B) stem; Sertoli
C) Sertoli; thecal
D) thecal; Sertoli
E) Stem; rete testes

Question 79

The flagellum is

A) a genital bacteria caused by poor care of the prepuce.
B) a non-cancerous disorder of the prostate.
C) a gland located below the prostate gland.
D) the sugary component of semen.
E) the motile tail of a sperm.

Question 80

One of the problems with a prostate that grows throughout adult life is

A) it's rare condition, so there is almost no investigative research.
B) it can choke the urethra.
C) it can cause testosterone levels to become dangerously high.
D) men find it difficult to sit for long periods of time.
E) All of the above