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The male gonads, which produce sperm and secrete male sex hormones.


the male reproductive cell


hormone released to develop the male reproductive organs.


the external pouch that contains the testes


a convoluted tubule in each testis

vas deferens

a duct that carries spermatozoa from the epididymis to the ejaculatory duct

seminal vesicles

produces seminal fluid

prostate gland

a firm partly muscular chestnut sized gland in males at the neck of the urethra


the thick white fluid containing spermatozoa that is ejaculated by the male genital tract


duct through which urine is discharged in most mammals and which serves as the male genital duct

ejaculatory duct

Tube through which semen enters the male urethra


the male organ that transfers sperm to a female and that carries urine out of the body.


a fold of skin covering the tip of the penis


the act of circumcising performed on males eight days after birth as a Jewish and Muslim religious rite


When the penis becomes engorged with blood and hard


stimulating one's own genitals, usually until orgasm occurs.

sexual response cycle

the four stages of sexual responding described by Matsters and Johnson-excitement, plateau, orgasm, and resolution.

sexual intercourse

the insertion of the penis into the vagina


the moment of most intense pleasure in sexual intercourse


the discharge of semen by the male reproductive organs


organs that produce eggs


female reproductive unit created in the ovaries


female sex hormone


organ of the female reproductive system in which a fertilized egg can develop

fallopian tubes

tubes which carry eggs from the ovaries to the uterus and which provides the place where fertilization occurs


the opening to the uterus


in the human female reproductive system, a canal that leads from the uterus to the outside of the body


the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause


external parts of the female genitalia

mons pubis

a mound of fatty tissue covering the pubic area in women

labia minoria

two smaller hairless folds of tissue that are located within the labia majora.

labia majora

two large folds of fatty tissue that are covered with hair on their outer surfaces; they enclose and protect the vagina


process in which an egg is released from the ovary

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