What is heart
The animal heart is derived from embryonic mesoderm germ-layer cells that differentiate after gastrulation into mesothelium, endothelium, and myocardium. Mesothelial pericardium forms the outer lining of the heart. The inner lining of the heart, lymphatic and blood vessels develop from endothelium. Myocardium develops into heart muscle.
From splachnopleuric mesoderm tissue, the cardiogenic plate develops cranially and laterally to the neural plate. In the cardiogenic plate, two separate angiogenic cell clusters form on either side of the embryo. Each cell cluster coalesces to form an endocardial tube continuous with a dorsal aorta and a vitteloumbilical vein. As embryonic tissue continues to fold, the two endocardial tubes are pushed into the thoracic cavity and begin to fuse together and are completely fused at approximately 21 days
From Wikipedia, the free encyclopedia
■ links
花粉症 治療 投資 ソフト メタボリックシンドローム 予防 ストレス解消法 自動車保険 ランキング 食材宅配 コスプレ 販売 ムダ毛 処理 中国茶器 在宅ワーク 求人
アイルクリニックは、アフターケアをNo.1とするクリニックです。実感の仕上がり保障システム、 ... 07月17日 『美容点滴』ページ新規追加です! ... 06月01日 Anecan6月号222pに歯科Dr永山院長の美容法掲載! ...