Ch.9 Male Reproduction Vocabulary Flashcards
bulbourethral glands
pair of exocrine glands near male urethra that secrete fluid into the urethra; also called Cowper glands
ejaculation
ejection of sperm and fluid from the male urethra
ejaculatory duct
tube through which semen enters the male urethra
epididymis
plural: epididymides)
pair of long, tightly coiled tubes above each testis. stores and carries sperm from seminiferous tubules to the vas deferens
erectile dysfunction
impotence
flagellum
hair-like projections makes sperm motile
fraternal twins
two separate ova fertilized by two separate sperm
glans penis
sensitive tip of penis
identical twins
division of zygote into two embryos
interstitial cells of the testes
specialized cells adjacent to the seminiferous tubules that produce testosterone
also called Leydig cells
parenchymal tissue
essential distinctive cells of an organ
penis
male external reproductive organ
perineum
area between anus and scrotum
prepuce
foreskin
prostate gland
exocrine gland at the base of the male urinary bladder that secretes one of the fluid parts of semen into the urethra during ejaculation
scrotum
external sac that contains the testes
semen
spermatozoa and seminal fluid (prostatic and seminal vesicle secretions) 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
stromal tissue
supportive connective tissue of an organ, as distinguished from its parenchyma. also called stroma
testis
plural: testes
male gonad (testicle) that produces spermatozoa and hormone testosterone. Testis means one testicle and testes are two testicles
testosterone
hormone secreted by the interstitial tissue of the testes, male sex characteristics
vas deferens
narrow tube (one on each side) carrying sperm from the epididymis toward the urethra. also called the ductus deferens
