1 Both blood stem cells and the endothelial lining of blood vessels arise from blood islands.
2 The region of the early heart tube that corresponds to the inflow and out flow respectively are:
3 Embryonic red blood cells only differ from adult cells in still having nuclei.
4 The embryo cardinal venous vessels which drain into the sinus venosus are:
5 The embryonic heart rate rises throughout development.
Early Heart Lecture | 2009 Quizzes