| A | B |
| germ cells | specialized sex cells produced by the gonads of both males and female sex organs |
| meiosis | cell division of sex cells |
| fertilization | when the nucleus of sperm combines with the nucleus of the egg to form a zygote |
| zygote | fertilized egg |
| ova | female gamete |
| estrogen | female sex hormone responsible for secondary sex characteristics of the female |
| progesterone | female sex hormone that thickens the endometrium to receive the developing embryo |
| ovulation | when mature ovum is released from ovary |
| ectopic pregnancy | pregnancy outside the uterus |
| fimbrae | fringelike folds that pull ovum into fallopian tube at ovulation |
| cervix | lower narrow portion of uterus that extends into the vagina |
| endometrium | inner mucous layer of the uterus |
| menstrual cycle | repeating cycle of maturation of ova, ovulation from one ovary every 28 days and menstruation if ova unfertilized |
| menopause | "change in life"; the time in a female's life when the monthly menstrual cycle comes to an end |
| spermatozoa | the male gamete |
| testosterone | the male sex hormone |
| infertility | conception does not occur despite trying for one year |
| amenorrhea | absence of the menstrual cycle |
| endometriosis | endometrial tissue found outside the uterus |
| hysterectomy | removal of the uterus |
| mammograms | special x-ray that detects breast cancer |
| pap smear | sample of cell scrapings taken from cervic for microscopic study |
| pelvic inflammatory disease | infection of the reproductive organs causing scarring of fallopian tubes, high fevers and pain |
| yeast infection | change in pH of vaginal area allows overgrowth of candida albicans |
| chlamydia | most common curable sexually transmitted disease in the United States |
| genital herpes | viral infection causing blisterlike area on the genitalia |