///// STi'MM'H. 



membranes: mi > xterual, or wutig ; a middle, or ntnui-iilnr : an-l an internal. 

 or mucous. 



1. Serous monirane. This membrane, derived from tlio peritoneum, 

 adheres closely to the muscular layer, except towards the lessor curvature, 

 where it is constantly covered by an expansion of yellow elastic tissue, 

 whose use appears to be to maintain the two extremities of the stomach 

 near each other; for when this is destroyed the lesser curvature becomes 

 considerably elongated. Along the whole of the greater curvature i- 

 a triangular space occupied by connective tissue ; this space disappears 

 more or less completely as the organ becomes distended. 



It has three folds, which are detached from the stomach and carried on 

 to the adjacent parts, and which are formed in the manner indicated 

 in the general description of the peritoneum. These f>Ms constitute 

 the cdi'iiitii- li'jnnii-itl. the gastro-hepatic li<j<tincut or amentum, and the great 



The cardiac ligament is a short, serous band developed around the 

 terminal extremity of the oesophagus, and strengthened by fibres of yellow 

 fibrous tissue. It attaches the stomach to the posterior* face of the 

 diaphragm, and is continuous, on each side, with the two folds about to be 

 described. 



The gastro-liepitic (or lesser} li'jamcnt is a band composed of two layers, 



which leave the lesser curvature of the stomach, and are inserted into the 



rior fissure of the liver. It is prolonged posteriorly, and to the right, 



along the duodenum, where it constitutes a peculiar serous fraenum which 



will be studied with the small intestine. 



The great, or gastro-colic amentum, is detached from the whole extent 

 of the great curvature, from the carrtia to the pylorus, beyond which it 

 extends to the duodenum. The portion surrounding the left cul-de-sac is 

 excessively short, and is carried to the subluinbar wall of the abdomen, to 

 which the stomach is fixed. For the remainder of its extent, this omentum 

 is greatly developed, and bungs freely in the abdominal cavity, among the 

 inal convolutions. The border opposed to the stomach is attached 

 to the terminal portion of the large colon, and to the origin of the b-~n- 

 colon. For further details, see the description of the peritoneum. These 

 three ligaments fix the stomach in the abdominal cavity, in addition to the 

 oesophagus and duodenum, which are continuous witli it. 



2. Muscular /////(///?. This tunic, comprised between the serous and 

 mucous layers, is lined internally by a covering of condensed connective 

 ti>Mte which adheres intimately to it, and which may be regarded as the 

 fibrous membrane of the stomach. Dissection shows this muscular tunic to 

 be composed of throe superposed planes. 



The superficial plane envelops all the right sac, and the majority of the 



fibres composing it are spread in loops around the left cul-de-tac, their 



mitics being lost on the surfaces of the organ. Some of them even 



extend over the great curvature, to the surface of the right sac ; while 



others are evidently continuous with the superficial fibres of the oesophagus 



185, A ). 



The middle plane (Fig. 185, B) is formed of circular fibres spread 

 over the whole of the organ. In the right sac, they are placed immediately 

 below the serous membrane ; in the left sac, they pass beneath the fibres 

 <>f the superficial plane, and finish by becoming confounded so intimately 

 uith these, that towards the tuberosity formed by the left extremity it is 

 impossible to li-tingtiish them. By their aggregation around the j.vl..m>. 



