one of a pair of exocrine glands near the male urethra
ejection of sperm and fluid from the male urethra
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
inability of an adult male to achieve an erection; impotence
hair-like projection on a sperm cell that makes it motile (able to move)
two infants born of the same pregnancy from two separate ova fertilized by two different sperm
sensitive tip of the penis
two infants resulting from division of one fertilized egg into two distinct embryos
inability of an adult male to achieve an erection
in the testes, these cells lie between the semineferous tubules and produce the hormone testosterone
tissue composed of essential and functional cells of organ.
external region between the anus and scrotum in the male
a fold of skin covering the tip of the penis; also called foreskin
exocrine gland in men, at the base of the urinary bladder.
external sac containing the testes
spermatozoa and seminal fluid
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.
narrow coiled tubules produce sperm in testes
any procedure that removes an individual's ability to produce or release reproductive cells
supportive, connective tissue of an organ, as distinguished from its parenchyma
male gonad that produces spermatozoa and the hormone testosterone
hormone secreted by the interstitial tissue of the testes; responsible for male sex characteristics
narrow tube (one on each side) that carries sperm from the epididymis into the body and toward the urethra.
tube through which semen enters the male urethra