The relationship between the atrioventricular sulcus, the myocardium and the subendocardial tissue in human embryos from 5 mm to 17 mm CR-length.
D005314:Embryonic and Fetal Development; D006321:Heart / Q000196:embryology*; D006325:Heart Atria / Q000033:anatomy & histology; D006352:Heart Ventricles / Q000033:anatomy & histology; D006801:Humans