Part II. ANATOMY OF THE PERITONEUM IN THE SUPRA-COLIC COMPARTMENT

OF THE ABDOMEN 99

1. STOMACH AND DORSAL MESOGASTRIUM 100

_a._ Changes in Position of Stomach 102

_b._ Changes in Direction and Extent of Dorsal Mesogastrium 103

_c._ Development of Spleen and Pancreas in the Dorsal Mesogastrium and Changes in the Disposition of the Great Omentum 108

1. Development of Spleen 108

2. Development of Pancreas 111

Development of Pancreas in Lower Vertebrates 115

Comparative Anatomy of Pancreas 116

Pyloric Caeca or Appendices 119

Peritoneal Relations of Pancreas 122

Comparison of Embryonal Stages during the Development of the Human Dorsal Mesogastrium, Spleen and Pancreas with the Permanent Adult Condition of the same Structures in Lower Mammalia 126

1. Spleen, Pancreas and Great Omentum of Cat 127

2. Relation of Great Omentum to Transverse Colon, Transverse Mesocolon and Third Part of Duodenum 129

2. VENTRAL MESOGASTRIUM AND LIVER 140

I. _A._ Development of Liver 141

_B._ Comparative Anatomy of Liver 144

_C._ Development of Vascular System of Liver 145

Comparative Anatomy of the Hepatic Venous Circulation 154

II. Ventral Mesogastrium 163

Peritoneal Relations of Liver 167

Relation of Hepatic Peritoneum to the "Lesser Sac" 174

Caudal Boundary of Foramen of Winslow 178

Pancreatico-gastric Folds 181