normal artery and cholesterol blocked artery. clogged arteries caused by cholesterol. normal veins and varicose veins. - 動脈 血管 幅插畫檔、美工圖案、卡通及圖標阻塞, 血液流動
man suffering heart attack. recognizing signs of a heart attack. - 動脈 血管 幅插畫檔、美工圖案、卡通及圖標動脈粥狀硬化, 心臟病, 高血壓
human internal organs, circulatory system and nervous system. female body. - 動脈 血管 幅插畫檔、美工圖案、卡通及圖標人體, 人體構造, 人體神經系統
human anatomy scientific illustrations: internal carotid artery and vertebral artery - 動脈 血管 幅插畫檔、美工圖案、卡通及圖標Vertebral Artery, 人體構造, 頸動脈
types of cholesterol in blood vessel. hdl and ldl lipoprotein comparison in artery cross section. good and bad cholesterol - 動脈 血管 幅插畫檔、美工圖案、卡通及圖標紅血球, 血液流動, 膽固醇