| A | B |
| Endocrine Glands | Glands that produce hormones |
| Hormones | Substances that control the functioning of the body |
| Pituitary Gland | The "master" endocrine gland |
| Puberty | Period of development leading to physical maturity |
| Testosterone | Male sex hormone |
| Estrogen | Female Sex Hormone |
| Ovaries | Female sex glands |
| Testes | Male sex glands |
| Ovulation | The release of an ovum from the ovary |
| Menstruation | Loss of the blood lining of the uterus |
| Wet Dreams | Unconscious release of semen usually during sleep |
| Ejaculation | The release of semen from the urethra |
| Sperm | Male sex cell |
| Ovum | Also known as the female "egg" |
| Semen | A mixture of sperm and fluids produced by the male reproductive system |
| Female | The sex that generally enters puberty first |