16 week fetal digestive system

3D Model

As a result of cephalocaudal and lateral folding of the embryo, a portion of the endoderm derived from gastrulation is incorporated into the embryo to form the primitive gut .

References : 1-Neters atlas of embryology (Updated Edition). 2-Langman medical embryology ( Fourteenth Edition ) . 3-larsens human embryology ( Sixth Edition ). 4-Textbook_of_Human_Embryology_with_Clinical_Cases_and_3D_Illustrations. 5-(Anatomy, Histology, Embryology, Developmental Anomalies, and Pediatric Disorders of the Biliary Tract) . 6-Diagnostic Imaging, OBSTETRICS , third edition textbook.