The mesoderm of each of the paired lateral heart-forming regions (HFRs) in the stage 5–7
chick embryo includes prospective conus (pre-C), ventricle (pre-V), and sinoatrial (pre-SA) …

It is generally thought that the early pre‐tubular chick heart is formed by fusion of the anterior
or cephalic limits of the paired cardiogenic fields. However, this study shows that the heart …

In human development, it is postulated based on histological sections, that the cardiogenic
mesoderm rotates 180° with the pericardial cavity. This is also thought to be the case in …

In gastrulation stage embryos of birds and mammals, the heart field is established as
mesodermal crescents flanking the area rostrolateral to Hensen's node. Subsequent fusion …

Fusion of the paired cardiac primordia occurs in the right medial plane and not in the mid
sagittal plane. This feature must be considered as a result of asymetrical closing of the …

The establishment of precardiac mesoderm and the role of anterolateral endoderm and
ectoderm in regulating heart muscle cell development have been studied in quail using …

Publisher Summary Results of fate-mapping experiments and transplantation studies that
test the developmental potency of early mesodermal cells have provided new insight into the …

The precardiac portion of the primitive streak of the chick embryo was investigated by
placing tritiated thymidine-labeled transplants within it. The movements and final positions of …

The contributions of right and left precardiac mesoderm to the hearts of chick embryos at
stages 9+ to 12+ have been determined. Embryos cultured by the New technique were …

During chick embryogenesis, cells destined to form cardiac myocytes are located within the
primitive streak at stage 3 in the same relative anterior‐posterior distribution as in the …