Chapter 4

Question 1

Penis

Answer 1

Male sexual organ consisting of the internal root and the external shaft and glans

Question 2

Root

Answer 2

The portion of the penis that extends internally into the pelvic cavity

Question 3

Shaft

Answer 3

The length of the penis between the glans and the body

Question 4

Glans

Answer 4

The head of the penis; it is richly endowed with nerve endings

Question 5

Cavernous Bodies

Answer 5

The structure in the shaft of the penis that engorge with blood during sexual arousal

Question 6

Spongy Body

Answer 6

A cylinder that forms a bulb at the base of the penis, extends up into the penile shaft, and forms the penile glans

Question 7

Foreskin

Answer 7

A covering of skin over the penile glans

Question 8

Corona

Answer 8

The rim of the penile glans

Question 9

Frenulum

Answer 9

A highly sensitive then strip of skin that connects the glans to the shaft on the underside of the penis

Question 10

Circumcision

Answer 10

• historical origins (pence to the gods)
• hygienic value and risk for STDs
• medical risks
• AAP: moderate opposition
• Phimosis: extremely tight foreskin

Question 11

Scrotum

Answer 11

Pouch of skin of the external male genitals that encloses the testes

• tunica dartos (first layer)
• skin (second layer)

Question 12

Testis

Answer 12

Male gonad inside the scrotum that produces sperm and sex hormones

Question 13

Spermatic Cord

Answer 13

Cord attached to the testis that contains the vas deferens, blood vessels, nerves, and cremasteric muscle fibers

Question 14

Cryptorchidism

Answer 14

A condition in which the testes fail to descend from the abdominal cavity to the scrotal sac

Question 15

Seminiferous Tubules

Answer 15

Thin, coiled structures in the testes in which sperm are produced

Question 16

Interstitial Cells

Answer 16

Cells located between the seminiferous tubules that are the major source of androgen in males

Question 17

Semen (seminal fluid)

Answer 17

• About 1 teaspoon

- 200 to 500 million sperm

Question 18

Epididymis

Answer 18

The structure along the back of each testis in which sperm maturation occurs

Question 19

Vas Deferens

Answer 19

A sperm-carrying tube that begins at the testis and ends at the urethra

Question 20

Vasectomy

Answer 20

Male sterilization procedure that involves removing a section from each vas deferens

Question 21

Erection

Answer 21

Autonomic nervous system
- arteries expand
- tumescence: blood outflow cannot keep up with inflow
Psychogenic and physiogenic factors

Question 22

Ejaculatory Ducts

Answer 22

Two short ducts located within the prostate gland

Question 23

Urethra

Answer 23

The tube through which urine passes from the bladder to the outside of the body

Question 24

Seminal Vesicles

Answer 24

Small glands adjacent to the terminals of the vas deferens that secrete an alkaline fluid (conductive to sperm motility) that makes the greatest portion of the volume of seminal fluid released during ejaculation

Question 25

Prostate Gland

Answer 25

A gland located at the base of the bladder that produces about 30% of the seminal fluid released during ejaculation

Question 26

Cowper's Glands

Answer 26

Two pea-sized glands located alongside the base of the urethra in the male that secrete an alkaline fluid during sexual arousal

Question 27

Semen or Seminal Fluid

Answer 27

A viscous fluid ejaculated through the penis that contains sperm and fluids from the prostate, seminal vesicles, and Cowper's glands

Question 28

Ejaculation

Answer 28

Process by which semen is expelled from the body through the penis

Question 29

Emission Phase

Answer 29

The first stage of male orgasm, in which the seminal fluid is gathered in the urethral bulb

Question 30

Expulsion Phase

Answer 30

The second stage of male orgasm, during which the semen is expelled from the penis by muscular contraction

Question 31

Retrograde Ejaculation

Answer 31

The process by which semen is expelled into the bladder instead of out of the penis

Question 32

Nocturnal Emission

Answer 32

Involuntary ejaculation during sleep; also known as a wet dream

Question 33

Genital Retraction Syndrome (GRS)

Answer 33

Unusual, culture-bound phenomenon in which a male believes his penis is shrinking and retracting into his body

Question 34

Koro

Answer 34

A widely used term for the genital retraction syndrome

Question 35

Circumcision 2

Answer 35

Surgical removal of the foreskin of the penis

Question 36

Phimosis

Answer 36

A condition characterized by an extremely tight penis foreskin

Question 37

Urology

Answer 37

Medical specialtymeddling with reproductive health and genital diseases of the male and urinary tract diseases in both sexes

Question 38

Smegma

Answer 38

Cheesy substance of glandular secretions and skin cells that sometimes accumulates under the foreskin of the penis or hood of the clitoris

Question 39

Penis Size

Answer 39

- symbol of virility - erect penises show less variation than flaccid - size not related to sexual satisfaction - penile augmentation - genital retraction syndrome

Question 40

Penis Health-Care Issues

Answer 40

- cleanliness: smegma, infections - reaction to vaginal secretions - injuries - penile cancer

Question 41

Penile Cancer

Answer 41

Rare malignancy that can be deadly if not diagnosed and treated in its earliest stages

Question 42

Testicle Health-Care Issues

Answer 42

Testicular Cancer: - rare, but more common in young men (15 to 34 years) - sign: hard or irregular mass - survival greater than 90% if detected early

Question 43

Diseases of the Prostate

Answer 43

``` Prostate Diseases: - prostatitis: enlarged and inflamed - benign prostatic hyperplasia - prostate cancer PSA Test Treatment options for prostate cancer ```