| A | B |
|---|
| testes | male reproductive glands |
| Vas deferens | tube that carries sperm from testes to urethra |
| urethra | tube that carries urine and, in males, sperm out of the body |
| semen | mixture of sperm and fluids |
| testosterone | male hormone produced by testes |
| ovaries | female reproductive glands |
| ovulation | release of mature egg from follicle |
| Fallopian tubes (oviducts) | tubes near ovaries which carry egg cells to uterus |
| uterus | muscular, pear-shaped organ where embryo develops |
| cervix | narrow opening at bottom of uterus |
| vagina (birth canal) | passageway that leads from uterus to exterior of body |
| estrogen | female sex hormone |
| menstrual cycle | hormone-controlled cycle in human female in which uterus prepares to receive egg |
| menopause | the permanent stopping of the menstrual cycle |
| fertilization | uniting of sperm cell with egg cell to produce zygote |
| labor | rhythmic contraction of uterus which dilate cervix and expel baby from uterus |
| premature birth | birth earlier than 9 months |
| caesarian section | incision through mother's abdomen and uterus, made in order to remove baby |
| Scrotum | pouch that protects the testes |
| Endocrine system | A system of glands that help the body function |
| sperm | the male reproductive cell |
| Egg (ova) | the female reproductive cell |
| Reproductive System | the system that makes it possible to produce offspring |
| Hormones | chemicals produced by glands in the body |
| Puberty | A time when adolescents develop the physical traits of adults |
