Biology Of Human Sexuality: Chapter 4

Which of the following can cause erectile difficulties?

Gynecomastia is

The point at which a man knows he can no longer stop himself from ejaculating is called

Oral stimulation of the anus is referred to colloquially as

Gynecomastia refers to an abnormal swelling of the scrotal sac.

Sperm account for up to 10% of the total volume of semen.

Which of the following events does NOT occur during the emission phase of ejaculation?

Men have regular fluctuations of hormone levels during a 24-hour period.

Which of the following is NOT a reason for erection of the penis?

Sperm contributes the X or Y chromosome to produce either a female or a male child.

If a man occasionally fails to maintain an erection when he wants to, he is

The homologous organ to the prostate gland is the

Since urine and semen both pass through the urethra,

On average, the volume of semen which is ejaculated is about

Beneath the foreskin are glands which produce

Males have breasts.

What structure is located in front of the rectum?

Inside each testicle are approximately 1,000 tiny compressed tubes where sperm production takes place. These are called __________________.

All of the following are male reproductive hormones EXCEPT

Which expression most accurately describes the male and female sexual response cycles?

What part of a male's penis is permanently removed in circumcision?

Which muscle causes the testes to be drawn closer to the body?

Which of the following is NOT true about testosterone?

The two external structures of the male sexual anatomy are the

Which of the following is NOT responsible for pulling the penis closer to the body, hence decreasing its size?

In all men, the glans is protected by the

According to your text, what overall statement can be made about the sexual and reproductive health needs of men?

When a boy is circumcised, the

Ejaculation and orgasm always occur simultaneously.

Ancient Egyptians believed that _______________ of their leaders were/was especially powerful.

The skin of the _____________ is more heavily pigmented than skin elsewhere on the body.

Which hormone is made by BOTH sexes? In men it is produced in the testes and in women mostly by the adrenal glands and ovaries.

How long does it take for sperm to form in the seminiferous tubules?

In men, which hormone stimulates sperm production in the testes?

Men do not enjoy being on the receiving end of anal play.

The homologous organ to the labia majora is the

According to the author of your text, those who appear to really suffer the most from penis envy are

In men, which hormone triggers the pituitary gland during sperm production?

The two columns of erectile tissue which run along the front surface of the penis are called the

The phase after orgasm during which men are not capable of having an ejaculation is called

A vasectomy does not affect a man's ability to ejaculate.

A healthy male will produce __________ of sperm every day.

What is cut in male sterilization?

At the point of ejaculatory inevitability, semen is briefly entrapped in the urethral bulb.

Which of the following is NOT an internal structure?

There is a direct relationship between the size of a man's penis and his ability to have sexual intercourse or satisfy his partner.

Franz is diagnosed as having retrograde ejaculation. This means that

Smegma is produced by small glands beneath the foreskin.

The function of semen is to nourish sperm and provide them with a hospitable environment and means of transport.

Which of the following is NOT an aspect of the male orgasm?

About one tablespoon of semen is ejaculated at one time.

Men spend an average of ______ years being sexually active and unmarried.

Male and female reproductive structures

Testosterone is an androgen.

The scrotum is

In men, which hormone increases sperm motility?

Retrograde ejaculation is ejaculation prior to emission.

All of the following are parts of the penis EXCEPT the

Testosterone can be made in all of the following organs EXCEPT________.

Some men find that strengthening the muscles that surround the penis by doing Kegel exercises can produce a more intense orgasm.

The thick, clear fluid that often appears on the tip of the penis before ejaculation is produced by the

Advocates for circumcision suggest that permanent disfigurement caused by removal of the foreskin is necessary because males are incapable of good personal hygiene.

All of the following structures contribute to the fluids that make up semen EXCEPT the

When a penis is erect, it always means that the man is sexually excited.

When flaccid, the average length of a penis is __________ inches long.

How many stages are involved in ejaculation?

It is believed that the purpose of the secretions of the Cowper's glands is to

The frenulum is

The homologous organ to the glans penis is the

The surgical removal of the foreskin of the penis is called

A steroid hormone synthesized from cholesterol that triggers the production of sperm is

In men, which hormone triggers secondary sex characteristics to develop and sperm production?

_____________ is the process by which semen is forcibly expelled from the penis.

The seminal vesicles secrete a fluid that makes up about ____ of seminal fluid.

Orgasm and ejaculation

The determining factor in the sex of a zygote comes from

Throughout the world, the erect penis is a symbol of

The urethra transports both semen and urine through the penis.

In the United States, many male infants routinely have a portion of their penises permanently cut off shortly after birth.

Orgasm does not always occur with ejaculation.

Spermatogenesis takes place in the seminal vesicles.

The _______ suspend(s) the testicles in the scrotal sac and contain(s) the vas deferentia.

The bulbourethral glands are also known as

An erection cannot be consciously willed because it is controlled by the sympathetic nervous system.

The part of the penis that may be most sensitive to stimulation is the

Studies have compared men and women and found that both have cycles that are subject to changes in mood and behavior patterns. In men, these can be attributed to

The generic and inclusive term for the male hormones is

Which of the following is part of the penis?

The prostate gland secretes a fluid that makes up about _________ of seminal fluid.

The average unaroused penis is slightly less than three inches long.

_____________ is the process by which semen is forcibly expelled from the penis

A triangular area of sensitive skin that attaches to the glans of the foreskin is called the

David is swimming in a cold swimming pool. His scrotum is likely to be

The expression "blue balls" refers to

For uncircumcised men, an important aspect of sexual hygiene involves

One safe way to determine whether a man's erectile difficulties are a result of physical problems is to:

Which of the following is NOT a function of the seminal fluid?

Steven often becomes sexually aroused but frequently does not ejaculate. How would this affect his general health?

A major difference between men and women in the sexual response cycle is that:

Gynecomastia, the swelling or enlargement of the male breast:

The external male sexual structures are the penis and the:

Testosterone is considered the most important male hormone because:

The word "penis" is derived from the Latin word for:

When not aroused, the average size of a penis is:

How often does spermatogeneis—the production of sperm—occur?

Assuming sexual intercourse occurs between a man and a woman, whose chromosomes would determine the offspring's sex?

Although a problematic solution, the most effective means for stopping the spread of HIV/AIDS is:

The male reproductive glands, which produce sperm and hormones, are the:

Although the text suggests that the primary reasons for circumcising the penis are tradition and religious beliefs, the uncircumcised penis:

Adam had a vasectomy. We would expect that he will no longer:

Men and women are both subject to cyclical changes in mood and behavior patterns.

The external male sexual structures are the penis and the scrotum.

Testosterone is produced by men, not by women.

Testosterone replacement therapy is commonly prescribed as a safe treatment for men who suffer from erectile problems.

Circumcision is a harmful procedure that should be discontinued.

Wet dreams are a sign of sexual abnormality.

Men are as able as women to experience multiple orgasms.

The man's urethra is a passageway for urine and semen.

Only women use Kegel exercises to strengthen genital muscles.

If the condition known as cryptorchidism is not corrected before puberty, sperm are unlikely to mature.