開かい放ほう血けっ管かん系けいMeaningsNoun1. open blood-vascular systemKanji used開open放release血blood管pipe系lineagePitch accentかいほうけっかんけいComposed of開かい放ほうopening (a door, window, etc.); leaving open; opening up (e.g. to the public); allowing (public) accessNoun血けっ管かんblood vessel; veinNoun系けいsystem; lineage; group; corollary; system (range of strata that correspond to a particular time period); (taxonomical) seriesNoun