Cardiovascular System Category:循環系統 Digestive System Category:消化系统 Endocrine System Category:內分泌系統 Immune System Category:免疫系統 Integumentary System 表皮系統 Nervous System Category:神经系统 Organ (anatomy) 器官 Reproductive System Category:生殖系统 Respiratory System Category:呼吸系統 Urinary System Category:泌尿系統