The heart is a muscular organ that is responsible for pumping blood throughout the blood vessels by repeated, rhytmic contractions. The human embryonic ...
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, etcâ€¦. Among the topics in this encyclopedia includes: - Heart Desscription - Cardiac Muscle - Cardiac Cycle - Circulation - Artery - Pulmonary Valve - Aortic Valve - Mitral Valve - Tricuspid Valve - Vena Cava This Beautiful Encyclopedia, is part of several volumes and issues which can be found on our website: www.encyclopediasuite.com And others in many different languages as well. Your visit to our website is valuable and your emails or comments are always welcome. Encyclopedia Suite: GREEN ENVIRONMENT ENCYCLOPEDIAS suite . www.encyclopediasuite.com
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Day of release: 0000-00-0