Human anatomy, including structure and development and practical considerations . of the hepatic recesses which areinstrumental in freeing the liver from its primary position within the septum. Theseparation of the li\er from the diaphragm is incomjjlete not only above, as alreadynoted, Init also behind ; consequently the greater part of the i)osterior surface of theorgan remains attached to the posterior body-wall by areolar tissue and is non-peri-toneal, the remains of the peripheral portion of the lower layer of the septum trans-versum, which becomes the peritoneum of the liver, being refle
Human anatomy, including structure and development and practical considerations . of the hepatic recesses which areinstrumental in freeing the liver from its primary position within the septum. Theseparation of the li\er from the diaphragm is incomjjlete not only above, as alreadynoted, Init also behind ; consequently the greater part of the i)osterior surface of theorgan remains attached to the posterior body-wall by areolar tissue and is non-peri-toneal, the remains of the peripheral portion of the lower layer of the septum trans-versum, which becomes the peritoneum of the liver, being reflected at the sidesbackward as the coronary ligaments. Coincidently with the development of the liver and its liberation from the sep-tum transversum, the stomach undergoes change in its axis, which becomes less verticaland more obliquely transverse, and in consequence its attachment to the liver,the primitive omentum, is drawn towards the right and assumes a Fig. 1438. Neural tube. Notochoril Aorta- -Wolffian both- - /Wolffian ^5; Body-cavit\ Mesentery -I—l,o\ver limb-bud - :j -o^ Umbilical veinsUmbilical artery Body-wall continuous with amnionTransverse section of rabbit embryo of eleven and a half days, showing primitive mesentery. X 35. transverse position almost at right angles to its former sagittal plane. These altera-tions in the position of the stomach and its anterior mesentery affect the mesogas-trium, which becomes elongated and twisted towards the right to follow the stomachin order to maintain its attachments to the greater curvature. The result of thesechanges is the production of a pocket behind the stomach, the floor and left wall ofwhich are the mesogastrium, the roof being the under surface of the liver. Thispocket, \ki^ lesser sac of the peritoneum, communicates with the remaining part ofthe peritoneal cavity on the right by means of a passage behind the displaced lesseror gastro-hepatic omentum, the free border of the lat
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Keywords: ., bookauthormc, bookcentury1900, bookdecade1910, booksubjectanatomy
