Hormones - Chemical substances, Thyroid Gland - It regulates metabolism., Pancreas - It produces insulin., Adrenal Glands - They produce adrenalin., Testes - They produce testosteron on men., Ovaries - They produce estrogenon on women., Pituitary Gland - It controls growth,

Endocrine System

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?