BODY CAVITIES, DIAPHRAGM AND MESENTERIES 



189 



to the septum grows the liver. This portion of the ventral mesentery gives rise 

 dorsally to the lesser amentum of the stomach and, with the septum transversum, 



Esophagus 



Spina.1 Corel. 



Peri cordial. 



Ccu/iTy 



Ventricle of 

 heart 



Ventral mesocardium 

 Liver 



Ventral mesentery 

 (falciform ligamenf)~ 



Dorsal 

 meso card- 

 i um 



Septum 



Iransversum 



Stomach 



B 



Ventral mesentery 



(lesser amentum) 



Dorsal 



mesogaslrium 



Dorsal 



pancreas 



Mesentery 



Afesocolon 



*Mesorectum 



FIG. 182. Diagram showing the primitive mesenteries of an early human embryo in median sagittal sec- 

 tion. The broken lines A, B, and C indicate the level of sections A, B, and C in Fig. 183. 



Ne 



f/euraJ, iube 



Notochord 



Aorta. Motochord 



Post cardinal Aorta. 

 Vein 



Dorsal mesentery 

 Bu.odetiu.rn 

 Lesse 



Liver 



Gut 



Tentonea.1 Cavity 



Talciform 

 ligament 



FIG. 183. Diagrammatic transverse sections. A , through the heart and pericardial cavities of an early 

 human embryo; B, through the stomach and liver; C, through the intestine and peritoneal cavity. 



it forms the ligaments of the liver. Ventrally it persists as the falciform ligament 

 (Fig. 183 B). 



