Developmental Anatomy
Stage 13: Internal
Circulatory System: heart, bronchial arches, conus truncus, dorsal aorta, sinus venous, umbilical artery, umbilical vein
![Front view Front view](assets/images/collections/hdac-s13-2la.png)
![Back view Back view](assets/images/collections/hdac-s13-2lb.png)
Gastro Intestinal: pharynx, trachea, esophagus, stomach, cloacae
![Front view Front view](assets/images/collections/hdac-s13-2lc.png)
![Back view Back view](assets/images/collections/hdac-s13-2ld.png)
Nervous System: neural tube, caudel neuropore
![Front view Front view](assets/images/collections/hdac-s13-2le.png)
![Back view Back view](assets/images/collections/hdac-s13-2lf.png)