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Male Reproductive


bulbourethral glands 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 (plural; epididymides) 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 from 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 tissues 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. The prostate secretes fluid that contributes to semen during ejaculation. HINT: Don't confuse prostate with prostrate, which means lying down.
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 (pluarl: spermatozoa) Sperm cell.
sterilization Procedure that removes a person's ability to produce or release reproductive cells; removal of testicles, vasectomy, and oophorectomy are sterilization procedures.
stromal tissue Supportive, connective tissue of an organ, as distinguished from its parenchyma. Also called stroma.
testis (ral: testes) Male gonad (testicle) that produces spermatozoa and the hormone testosterone. Remember: Testis means one testicle, and testes are two testicles.
testosterone Hormone secreted by the interstitial tissue of the testes; responsible for male sex characteristics.
vas deferens Narrow tube (one on each side) carrying sperm from the epididymis toward the urethra. Also called ductus deferens.
Created by: MamaTurtle67