| A | B |
|---|
| testes | male sex glands |
| Vas deferens | tube that carries sperm from testes to urethra |
| urethra | tube that carries urine and, in males, sperm out of the body |
| seminal vesicles & prostate gland | secrete fluids into the urethra which nourish and protect sperm |
| semen | mixture of sperm and fluids |
| testosterone | male hormone produced by testes |
| adolescence | time between childhood and adulthood |
| examples of male secondary sex characteristics | beard, deep voice, muscle development |
| female secondary sex characteristics | breast development, wider pelvis |
| ovaries | female sex glands |
| follicles | tiny sacs in ovary where oogenesis occurs |
| ovulation | release of mature egg from follicle |
| Fallopian tubes | 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 | when the egg, blood, and nutrients leave the uterus |
| fertilization | uniting of sperm cell with egg cell to produce zygote |
| amniotic sac | surrounds embryo and fills with amniotic fluid, cushioning embryo |
| placenta | organ that allows contact between mother's blood and embryo's;acts as barrier to some harmful substances |
| 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 |
