bulbourethral gland
one of a pair of exocrine glands near the male urethra
Cowper gland
bulbourethral gland
ejaculation
ejection of sperm and fluid from the male urethra
epididymis
one of a pair of long, tightly covered coiled tubes lying on top of each testis. it carries sperm from the 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 (able to move)
fraternal twins
two infants born of the same pregnancy from two separate ova fertilized by two different sperm
glans penis
sensitive tip of the penis
identical twins
two infants resulting from division of one fertilized egg into two distinct embryos
impotence
inability of an adult male to achieve an erection
interstitial cells
in the testes, these cells lie between the semineferous tubules and produce the hormone testosterone
parenchyma
tissue composed of essential and functional cells of organ.
perineum
external region between the anus and scrotum in the male
prepuce
a fold of skin covering the tip of the penis; also called foreskin
prostate gland
exocrine gland in men, at the base of the urinary bladder.
scrotum
external sac containing the testes
semen
spermatozoa and seminal fluid
seminal vesicle
either of paired sac-like male exocrine glands that secrete a fluid into the vas deferens. The seminal fluid is the major component of semen.
seminiferous tubules
narrow coiled tubules produce sperm in testes
spermatozoon
sperm cell
sterilization
any procedure that removes an individual's ability to produce or release reproductive cells
stroma
supportive, connective tissue of an organ, as distinguished from its parenchyma
testis
male gonad that produces spermatozoa and the hormone testosterone
testosterone
hormone secreted by the interstitial tissue of the testes; responsible for male sex characteristics
vas deferens
narrow tube (one on each side) that carries sperm from the epididymis into the body and toward the urethra.
ejaculatory duct
tube through which semen enters the male urethra