1182 



DIGESTIVE SYSTEM 



is the caudate (Spigelian) lobe, opposite the tenth and eleventh thoracic vertebral 

 bodies, from which it is separated by the diaphragm (chiefly the right crus). 

 On the right of the caudate lobe is the fossa lodging the vena cava (sometimes 

 bridged over), while to the left is the fissure of the ductus venosus, giving attach- 

 ment to the upper portion of the lesser omentum (relations in cross-section shown 

 in fig. 945). 



The superior surface [facies superior] is in general convex and moulded to the 

 inferior surface of the diaphragm (fig. 941). Tne relations in cross-section of the 



Fig. 943. — Posterior Surface of the Liver. 



Left lobe Vena cava inferior 



Tuber omentale 



Papillary process of caudate (Spigelian) lobe 



Impression for right kidney 



body are shown in fig. 945. It extends downward upon the anterior abdominal 

 wall to a variable extent in the epigastric region, including the entire area of the 

 liver visible from the front (fig. 941). It also presents a broad area extending 

 downward on the right side. Symington accordingly distinguishes three surfaces 

 corresponding to the superior surface above described, viz., right surface, anterior 

 surface and superior surface. The superior surface is related above, through the 

 diaphragm, with the base of the right lung, the pericardium and heart, and (on 

 the extreme left) with the base of the left lung. Where it rests upon the liver, 

 the heart forms a shallow fossa [impressio cardiaca]. 



Fig. 944. — Diagram Showing Ligaments on the Dorso-inferior Aspect of the 

 Liver. (Lewis and Stohr.) c.l, Coronary lig. f.l. Falciform lig. g.b., Gall bladder, l.o., 

 Lesser omentum. t.<./., Left triangular lig. o.6., Caudate lobe, p.t'., Portal vein. r.l.,Lig. 

 teres, r.t.l., Right triangular lig. v.c.i., Vena cava inf. 



/l.t.l. .vri o.b. 



,r.t.T. 



^v.c.i. 



The inferior or visceral surface [facies inferior] (fig. 942) faces downward and 

 backward. It is irregularly concave, with impressions due to contact with the 

 underlying viscera. It is divided into three lobes, right, left, and quadrate, whose 

 relations will bo described later. 



Of the borders, the anterior [margo anterior] is the best marked. It forms the 

 inferior boundary of the triangular anterior view of the fiver (figs. 899, 914, 941), 

 and separates the superior from the inferior surface. Slightly to the left of the 

 mid-line, it often presents a slight umbilical notch [incisura umbilicalis], where it 





