【實用醫療app】Heart Encyclopedia DaPi|最夯免費app-綠色工廠好玩App

The heart is a muscular organ that is responsible for pumping blood throughout the blood vessels by repeated, rhytmic contractions.The human embryonic heart begins beating at around 21 days after conception. On this Great Heart Encyclopedia, you will find all abou Heart, Structure, Functioning, etc….Among the topics in this encyclopedia includes:- Heart Desscription- Cardiac Muscle- Cardiac Cycle- Circulation- Artery- Pulmonary Valve- Aortic Valve- Mitral Valve- Tricuspid Valve- Vena CavaThis Beautiful Encyclopedia, is part of several volumes and issueswhich can be found on our website:www.encyclopediasuite.comAnd others in many different languages as well.Your visit to our website is valuable and your emails or commentsare always welcome.Encyclopedia Suite:GREEN ENVIRONMENT ENCYCLOPEDIAS suite .www.encyclopediasuite.com