365bet中国官方网站

  • word of the day

    left atrioventricular valve

    left atrioventricular valve - 365bet中国官方网站 definition and meaning for word left atrioventricular valve

    Definition
    (noun) valve with two cusps; situated between the left atrium and the left ventricle

  • Word used in video below:
    text: maybe we don't need this saturn valve
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