Deck 6: Male Sexual Anatomy and Physiology

Question 1

Testicles are located outside the body because:

A)they can be kept cleaner.
B)sperm need to be cooler to survive.
C)the body cavity is too moist.
D)they are too sensitive to be housed in the body.
E)none of these are true

Answer 1

B

Question 2

The foreskin or prepuce is really a continuation of the skin covering the:

A)scrotum.
B)penis.
C)prostate.
D)meatus.
E)testicles.

Answer 2

B

Question 3

What muscle contracts and expands in order to keep the testicles at the proper temperature?

A)erectile muscle
B)testicular muscle
C)cremaster muscle
D)inguinal muscle
E)bulbourethral muscle

Answer 3

C

Question 4

Men's testicles are located in the scrotum instead of in the abdomen because:

A)testosterone from the testicles would damage other internal organs.
B)for sperm to fertilize the egg,there is a precise distance that they must travel.
C)to produce sperm,they need to be a few degrees lower than body temperature.
D)they are safer there.
E)they cannot make testosterone anywhere else.

Question 5

Which of the following statements about penis size is TRUE?

A)15% of men have a penis longer than seven inches.
B)The average erect penis is six inches long.
C)A father's penis size correlates well with his son's.
D)Men get their ideas of what constitutes an average penis size from pornography.
E)All of the above are true.

Question 6

The reason that men wake up with erections is because:

A)they need to urinate.
B)they have been having erotic dreams.
C)it is a conditioned response.
D)it is voluntary.
E)the penis gets erect during REM sleep.

Question 7

If a physician asked a man with erectile dysfunction if he had nighttime erections,the physician would most likely be trying to determine:

A)if the man was at risk for HIV or AIDS.
B)if the man was dreaming normally.
C)if the man's erectile dysfunction was physiologically or psychologically caused.
D)if the man's wife was pregnant.
E)if the man had a sleep disorder.

Question 8

What are the two main functions of the testicles?

A)sperm and testosterone production
B)semen and prostate fluid storage
C)erection and urination
D)to prevent aging and injury to sperm
E)to count and store sperm

Question 9

If the semen of a man has a bitter taste,one could suspect that he:

A)is a bitter person.
B)is old.
C)is infertile.
D)is uncircumcised.
E)is a marijuana smoker.

Question 10

The process of erection involves:

A)rapid muscle contractions of the penile root.
B)a sweating response that lubricates the penis.
C)blood engorgement of the testicles which push the penis up.
D)erectile tissues filling with blood.
E)all of these are true

Question 11

Which statement below regarding male circumcision is TRUE?

A)Health care providers recommend routine circumcision for all male babies born in the United States.
B)Circumcision has been related to higher rates of cancer of the penis.
C)Circumcision is practiced as a religious and/or cultural ritual for many groups of people.
D)In some African countries circumcised men have a higher HIV rate.
E)Circumcision rates in the United States have risen over the last ten years.

Question 12

Erection is basically a:

A)spinal reflex.
B)cognitive process.
C)respiratory event.
D)willful response.
E)muscular contraction

Question 13

The order of sperm development from least to most mature is:

A)spermatogonium,spermatocyte,spermatid,spermatozoon.
B)spermatozoon,spermatid,spermatocyte,spermatogonium.
C)spermatid,spermatocyte,spermatogonium,spermatozoon.
D)spermatocyte,spermatogonium,spermatozoon,spermatid.
E)spermatogonium,spermatid,spermatozoon,spermatocyte.

Question 14

The corpus spongiosum:

A)contains tissue that fills with blood to cause erection.
B)is a muscle that helps the erect penis move.
C)is the part of the penis that carries urine.
D)is the bone-like structure of the penis.
E)attaches the penis to the abdomen.

Question 15

What is the name of the tightly coiled ducts located in the testicles where spermatozoa are produced?

A)ejaculatory ducts
B)seminal vesicles
C)seminiferous tubules
D)epididymis
E)inguinal canals

Question 16

The collected products of sweat and oil glands that can accumulate under the foreskin is called:

A)Leidig's fluid.
B)yeast.
C)bacteria.
D)cremaster fluid.
E)smegma.

Question 17

What cells produce testosterone?

A)inguinal cells
B)Cowper's cells
C)Bulbourethral cells
D)Leydig cells
E)prostate cells

Question 18

The term spermatogenesis refers to __________.

A)the aging of the seminiferous tubules
B)the production of sperm
C)the production of semen
D)the transformation of sperm to semen
E)the process when sperm is converted to testosterone

Question 19

What happens to sperm that are not ejaculated?

A)They cause the seminiferous tubules to explode.
B)They result in severe pain for the man.
C)They make the man infertile for a period of time.
D)They reduce sexual arousal.
E)They are reabsorbed by the body.

Question 20

The average man produces __________ sperm per day.

A)3 million
B)30 million
C)300 million
D)3 billion
E)30 billion

Question 21

As men age,their blood testosterone concentrations decrease.This is referred to as:

A)menopause.
B)gynecomastia.
C)feminization.
D)andropause.
E)semenization.

Question 22

Despite the fact that they don't ejaculate mature sperm for another year and a half,sperm production in boys begins at what age,on average?

A)8
B)10
C)12
D)14
E)16

Question 23

What is the function of male breasts?

A)there is no known function
B)to protect men from cancer
C)to provide needed hormones in men
D)to protect men from injury
E)to facilitate conception

Question 24

Which structure in the male reproductive system adds an alkaline fluid to semen,helping it to neutralize vaginal acidity?

A)seminal vesicle
B)epididymis
C)vas deferens
D)Cowper's glands
E)prostate

Question 25

What happens to sperm while they sit in the epididymis?

A)They develop the flagellum.
B)They are bathed in testosterone.
C)They receive fluid from the prostate gland that helps them move.
D)They mature.
E)They are ejaculated

Question 26

What is gynecomastia?

A)prostate enlargement
B)the twisting of the spermatic cord
C)penile atrophy
D)the shrinking of the testicles
E)male breast enlargement

Question 27

Testicular torsion __________.

A)is most common in men over 60
B)occurs only when men are engaging in heavy exercise
C)is a genetic condition
D)is caused by drug use
E)can cause severe pain and swelling and death of the testicle tissue

Question 28

Each ejaculation contains between __________ and __________ million sperm.

A)1,5
B)10,20
C)100,150
D)300,500
E)500,900

Question 29

What structures contribute fluid that makes up the bulk of semen?

A)seminal vesicles and prostate gland
B)epididymis and Cowper's glands
C)testicles and vas deferens
D)ampulla and epididymis
E)Leydig cells and testicles

Question 30

The condition characterized by a painful and persistent erection is called:

A)Peyronie's disease.
B)cryptorchidism.
C)testicular hypertrophy.
D)priapism.
E)hydrocele.

Question 31

What is the ejaculatory duct?

A)the path for the testicles to descend into the scrotum
B)a tube that transports testosterone to the erectile tissue in the penis
C)the duct that becomes infected in Peyronie's disease
D)another name for the corpora cavernosa
E)a short straight tube that transports sperm to the urethra through the prostate

Question 32

Orgasm in the male can most accurately be described as a series of:

A)constricting and dilating blood vessels.
B)contractions.
C)temperature changes.
D)hormonal changes.
E)endocrine changes.

Question 33

In cryptorchidism,

A)the testes fail to descend into the scrotum.
B)testicular cancer occurs.
C)the testes atrophy due to age.
D)testosterone production is dangerously high.
E)men experience hot flashes.

Question 34

What is the name of the two pea-size glands that open into the urethra and produce a fluid that cleans and lubricates the urethra?

A)penile glands
B)scrotal glands
C)seminal Vesicle glands
D)Cowper's glands
E)prostate glands

Question 35

Which of the following has recent research identified to be associated with a reduction of sperm quality?

A)dioxins
B)phthalates
C)soy products
D)cell phones
E)all of the above

Question 36

What structure releases gonadotropin releasing hormone (GnRH),signaling the physiological start of puberty in boys?

A)the hypothalamus
B)the epididymis
C)the scrotum
D)the frontal lobe
E)the prostate gland

Question 37

What triggers puberty in a boy's life?

A)testosterone production
B)adequate sperm production
C)exposure to environmental pollutants
D)hormones in meat and milk
E)we don't know

Question 38

Which of the following is the correct pathway of sperm,from production to exit from the body?

A)vas deferens-->seminiferous tubules-->epididymus-->ejaculatory duct-->urethra
B)seminiferous tubules-->vas deferens-->ejaculatory duct-->epididymis-->urethra
C)seminiferous tubules-->epididymis-->vas deferens-->ejaculatory duct-->urethra
D)ejaculatory duct-->seminiferous tubules-->epididymis-->vas deferens-->urethra
E)epididymis-->seminiferous tubules-->ejaculatory duct--> vas deferens-->urethra

Question 39

The structures that propel the sperm from the testicles to the urethra are the:

A)seminiferous tubules.
B)seminal vesicles.
C)interstitial cells.
D)corpora cavernosa.
E)vas deferens.

Question 40

Although only one sperm may fertilize the egg,there are millions more in each ejaculation.ALL of the following are reasons for this EXCEPT:

A)only a small fraction ever reach the egg.
B)it takes the combined enzyme action of many sperm for one to fertilize the egg.
C)many die to plug up the opening of the cervix.
D)many sperm are needed to cause ovulation in women.
E)all of these are true are true

Question 41

A man is experiencing a bump or lump in his scrotum.This happened while he was lifting or straining.Which of the following conditions is he most likely to have?

A)testicular cancer
B)inguinal hernia
C)Peyronie's disease
D)prostate cancer
E)penile cancer

Question 42

It takes about 48 hours for mature sperm to develop.

Question 43

Prostate cancer is most common:

A)among men aged 15-44.
B)among men who are older than 50.
C)among Caucasians as compared to African-Americans.
D)among men whose wives are much younger than they.
E)among those living in Asia.

Question 44

Which of the following statements regarding benign prostatic hypertrophy is TRUE?

A)It is actually more likely to affect the testes than the prostate.
B)In most cases it is quite serious and causes many problems.
C)It is a condition in which the prostate enlarges with age.
D)It is a fairly unusual abnormality.
E)It is quite common among men ages 20 to 30.

Question 45

The two main functions of the testicles are sperm and testosterone production.

Question 46

If a man experiences a painful curvature of his erect penis,would you most likely diagnose:

A)cryptorchidism.
B)priapism.
C)Peyronie's disease.
D)gynocomastia.
E)penile hyperatrophy.

Question 47

A young man who is fifteen years old has just been diagnosed with a cancer of the reproductive organs.Given his age,which of these cancers is more likely?

A)testicular
B)penile
C)prostate
D)breast
E)epididymis

Question 48

Men can go months without ejaculating.

Question 49

In a normal male fetus,the testes descend into the scrotum through the:

A)inguinal canal
B)vas deferens
C)epididymis
D)corpus spongiosum
E)cremaster channel

Question 50

Sperm require temperatures warmer than the body's temperature for viability.

Question 51

The penis evolved into a shape that allows it to remove another lover's sperm from the reproductive track of a woman.

Question 52

A condition in which erections are long-lasting and often painful is called:

A)priapism
B)Peyronie's disease
C)hydrocele
D)an inguinal hernia
E)cryptorchidism

Question 53

A rectal exam by a physician is used most often to diagnose __________ in men.

A)testicular cancer
B)prostate cancer
C)penile cancer
D)infertility
E)sexual orientation

Question 54

The penis is composed of a large bone and numerous muscles,helping it to become erect when a man is sexually aroused.

Question 55

Pre-ejaculatory fluid that many men experience during arousal originates from the Cowper's glands but never contains any live sperm.

Question 56

There are no recorded cases of "captive penis" in humans.

Question 57

The best treatment for cryptorchidism is:

A)testosterone supplements once a man reaches fifty years of age.
B)lifelong testosterone and progesterone supplements.
C)surgery before six months of age.
D)circumcision.
E)none of the above.There is no cure for cryptorchidism

Question 58

A PSA test is a blood test used to detect what type of cancer?

A)colon cancer
B)breast cancer in men
C)prostate cancer
D)scrotal cancer
E)testicular cancer

Question 59

Penis size is strongly correlated with the ability to satisfy a partner during sex.

Question 60

Health care providers recommend routine circumcision for all male babies born in the United States.

Question 61

Research has found that laptop computers may pose a long-term threat to the fertility of young men.

Question 62

The condition characterized by a painful and persistent erection is called Peyronie's disease.

Question 63

A PSA test is a blood test used to detect prostate cancer.

Question 64

Prostate cancer is untreatable.

Question 65

In cryptorchidism the testes fail to descend into the scrotum.