| Term | Definition |
| Cervix | Entrance to the uterus. |
| Clitoris | Female erectile tissue between the labia. |
| Egg Cells | Cells produced in the ovaries. |
| Ejaculation | When the semen leaves the penis. |
| Embryo | First two months of development in the uterus. |
| Epididymis | Carries sperm to vas deferens. |
| Erection | When the penis becomes engorged with blood and hard. |
| Estrogen | A hormone produced in the ovaries. |
| Fallopian Tubes | Where fertilization takes place. |
| Fertilization | Sperm cell joins egg cell. |
| Fetus | Last seven months of prenatal development. |
| Labia | Folds of skin outside of the vagina. |
| Ovaries | Glands that produce the eggs cells and hormones. |
| Placenta | Organ that nourishes the fetus. |
| Prostate Gland | Adds a chemical fluid to the semen. |
| Puberty | Begins at about age 12 or 13. |
| Scrotum | Sac that regulates the temperature of the testes. |
| Semen | Fluid ejaculated from the penis. |
| Seminal Vesicles | Adds a sugary fluid to semen. |
| Sperm Cells | Cells produced in the testes. |
| Testes | Organ that produces sperm. |
| Testosterone | Male hormone. |
| Urethra | Brings urine and semen out of body through the penis. |
| Uterus | Houses the fetus during pregnancy. |
| Vagina | Female organ of intercourse; birth canal |
| Vas Deferens | Tube that carries sperm from testes. |