chapter 9 male repro Flashcards
bulbourethral glands
a pair of exocrine glands near the male urethra. They 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
one of a pair of long, tightly coiled tubes 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 egg cells fertilized by two different sperm cells.
glans penis
sensitive tip of the penis.
identical twins
two infants resulting from division of one fertilized egg into two distinct embryos. conjoined twins are incompletely separated identical twins.
parenchyma
the essential distinctive cells of an organ. In the testis, the seminiferous tubules that produce sperm are the parenchymal tissues.
penis
male external organ of reproduction
perineum
external region between the anus and scrotum in the male
prepuce
foreskin; fold of skin covering the tip of the penis.
prostate gland
exocrine gland at the base of the male urinary bladder. The prostate secretes the fluid part of semen into the urethra during ejaculation.
scrotum
external sac that contains the testes.
semen
spermatozoa (sperm cells) and seminal fluid (prostatic and seminal vesicle secretions).
seminal vesicles
paired sac-like male exocrine glands that secrete fluid (a major component of semen) into the vas deferens.
seminiferous tubules
narrow, coiled tubules that produce sperm in the testes.
spermatozoon
sperm cell
sterilization
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. Also called ductus deferens.
andr/o
male
balan/o
penis