Chapter 9 Flashcards
bulbourethral glands
pair of exocrine glands near the male urethra; secrete fluid into urethra; also called Cowper glands
circumcision
removal of the prepuce (foreskin); common elective procedure performed shortly after birth
ejaculation
ejection of sperm and fluid from the male urethra
ejaculatory duct
tube through which semen enters the male urethra
epididymis
one of a pair of long, tightly coiled tubes above each testis; it stores and carries sperm from seminiferous tubules to the vas deferens
erectile dysfunction
inability of an adult male to achieve an erection; impotence
flagellum
hair-like projection on a sperm cell that makes it motile
foreskin
fold of skin covering the head of the penis; prepuce
fraternal twins
two infants resulting from fertilization of two separate ova by two separate sperm cells
glans penis
sensitive tip of the penis; comparable to the clitoris in the female
identical twins
two infants resulting from division of one fertilized egg
infertility
in a man, any problem that lowers the chances of his female partner getting pregnant
interstitial cells of the testes
specialized cells that lie adjacent to the seminiferous tubules in the testes; produce testosterone; also called Leydig cells
parenchymal tissue
essential distinctive cells of an organ; in the testis, the seminiferous tubules that produce sperm
penis
male external organ of reproduction
perineum
external region between the anus and scrotum in the male
prepuce
foreskin
prostate gland
exocrine gland at the base of the male urinary bladder; secretes fluid that contributes to semen during ejaculation
scrotum
external sac that contains the testes
semen
spermatozoa and seminal fluid discharged from the urethra during ejaculation
seminal vesicles
paired sac-like exocrine glands that secrete fluid into the vas deferens
seminiferous tubules
narrow, coiled tubules that produce sperm in the testes
spermatozoon (plural: spermatozoa)
sperm cell
sterilization
procedures that remove a person’s ability to produce or release reproductive cells; removal of testicles, vasectomy, and oophorectomy are examples
stromal tissue
supportive, connective tissue of an organ; also called stroma
testis
male gonad that produces spermatozoa and testosterone
testosterone
hormone secreted by the interstitial tissue of testes; responsible for male sex characteristics
vas deferens
narrow tube (one on each side) carrying sperm from epididymis toward the urethra; also called ductus deferens
