Chapter 9

Question 1

bulbourethral glands

Answer 1

pair of exocrine glands near the male urethra; secrete fluid into urethra; also called Cowper glands

Question 2

circumcision

Answer 2

removal of the prepuce (foreskin); common elective procedure performed shortly after birth

Question 3

ejaculation

Answer 3

ejection of sperm and fluid from the male urethra

Question 4

ejaculatory duct

Answer 4

tube through which semen enters the male urethra

Question 5

epididymis

Answer 5

one of a pair of long, tightly coiled tubes above each testis; it stores and carries sperm from seminiferous tubules to the vas deferens

Question 6

erectile dysfunction

Answer 6

inability of an adult male to achieve an erection; impotence

Question 7

flagellum

Answer 7

hair-like projection on a sperm cell that makes it motile

Question 8

foreskin

Answer 8

fold of skin covering the head of the penis; prepuce

Question 9

fraternal twins

Answer 9

two infants resulting from fertilization of two separate ova by two separate sperm cells

Question 10

glans penis

Answer 10

sensitive tip of the penis; comparable to the clitoris in the female

Question 11

identical twins

Answer 11

two infants resulting from division of one fertilized egg

Question 12

infertility

Answer 12

in a man, any problem that lowers the chances of his female partner getting pregnant

Question 13

interstitial cells of the testes

Answer 13

specialized cells that lie adjacent to the seminiferous tubules in the testes; produce testosterone; also called Leydig cells

Question 14

parenchymal tissue

Answer 14

essential distinctive cells of an organ; in the testis, the seminiferous tubules that produce sperm

Question 15

penis

Answer 15

male external organ of reproduction

Question 16

perineum

Answer 16

external region between the anus and scrotum in the male

Question 17

prepuce

Answer 17

foreskin

Question 18

prostate gland

Answer 18

exocrine gland at the base of the male urinary bladder; secretes fluid that contributes to semen during ejaculation

Question 19

scrotum

Answer 19

external sac that contains the testes

Question 20

semen

Answer 20

spermatozoa and seminal fluid discharged from the urethra during ejaculation

Question 21

seminal vesicles

Answer 21

paired sac-like exocrine glands that secrete fluid into the vas deferens

Question 22

seminiferous tubules

Answer 22

narrow, coiled tubules that produce sperm in the testes

Question 23

spermatozoon (plural: spermatozoa)

Answer 23

sperm cell

Question 24

sterilization

Answer 24

procedures that remove a person’s ability to produce or release reproductive cells; removal of testicles, vasectomy, and oophorectomy are examples

Question 25

stromal tissue

Answer 25

supportive, connective tissue of an organ; also called stroma

Question 26

testis

Answer 26

male gonad that produces spermatozoa and testosterone

Question 27

testosterone

Answer 27

hormone secreted by the interstitial tissue of testes; responsible for male sex characteristics

Question 28

vas deferens

Answer 28

narrow tube (one on each side) carrying sperm from epididymis toward the urethra; also called ductus deferens