| A | B |
|---|
| Peptide hormones | water soluble |
| Hypothalamus | Issues commands to the pituitary gland |
| Thyroxine | Thyroid gland |
| Testosterone | male sex hormone |
| Estrogen | female sex hormone |
| Goiter | lack of iodine in diet |
| parathyroid gland | calcium in the blood |
| endorphins | regulate emotions |
| cyclic AMP | second messenger |
| anterior and posterior lobe | pituitary gland |
| hypothyroidism | underproduction of thyroxine |
| hyperthyroidism | overproduction of thyroxine |
| steroid | lipid soluble |
| location of parathyroid glands | posterior thyroid |
| insulin | made in pancreas |
| testes | site of testosterone formation and sperm formation |
| ovaries | site of estrogen and egg formation |
| epididymis | sperm mature and develop in this structure |
| menstrual cycle time period | 28 days |
| blastocyst | hollow ball of about 100 cells |
| zygote | sperm + egg |
| fetus | developing human from eight weeks on |
| head and tail | sperm |
| ovulation | mature ovum released |
| 40 weeks | normal gestation time |
