Module 9: Male Reproductive System Flashcards
(112 cards)
bulbourethral glands
pair of exocrine glands near the male urethra. They secrete fluid into the urethra (aka Cowper glands)
ejaculation
ejection of sperm and fluid from the male urethra
ejaculatory duct
tube through which semen enters the male urethra
epididymis (plural: epudidymides)
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 (able to move)
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 the division of one fertilized egg into two distinct embryos. Conjoined (Siamese) twins are incompletely separated identical twins
interstitial cells of the testes
specialized cells that lie adjacent to the seminiferous tubules in the testes. These cells produce testosterone and are also called Leydig cells
parenchymal tissue
essential distinctive cells of an organ. In the testis, the seminiferous tubules that produce sperm are parenchymal
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
What does the prostate gland secrete?
one of the fluid parts 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), discharged from the urethra during ejaculation
seminal vesicles
paired sac-like 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 (plural: spermatozoa)
sperm cell
sterilization
a procedure that removes a person’s ability to produce or release reproductive cells; removal of testicles, vasectomy, and oophorectomy
stromal tissue
supportive, connective tissue of an organ, as distinguished from its parenchyma (aka stroma)
testis (plural: testes)
male gonad (testicle) that produces spermatozoa and the hormone testosterone