血けっ管かん弁べん膜まくけっかんべんまくじ字FuriganaMeanings1nounvalve of the veins; venous valveanatomy›Anatomical term for the valves inside veins that prevent backflow of blood.血けっ管かん弁べん膜まくは血けつ液えきの逆ぎゃく流りゅうを防
