25 پاسخ به “قلب و سیستم گردش خون – نحوه کار آنها”

  1. How did Mayo Clinic get this wrong? Blood is never BLUE. It is dark red when deoxygenated and brighter red when oxygenated but never blue. The color blue is only used to make the veins to signify their location versus arteries in diagrams.

  2. Best video animation of cardiac cycle. Tommorow is biology exam so thanks for being helpful. You have saved my 7 marks.
    Thanks…….
    …….
    ……
    …..
    ….

    ..
    .
    ☺️

نظرات بسته شده اند.