286 



FASCI.E AND ilUSCLES OF THE HORSE 



and ninth costal cartilages to the xiphoid cartilage. From these points of origin 

 the fibers curve inward and forward to join the tendinous center.^ The nght cms 

 is about twice as thick as the left one and is also longer. It arises by a strong tendon 



Longissimus dorsi 



Litmhnr transverse 

 process 



Costal arch 

 Muscido-phrenic 

 artery 



Transversus 



abdominalis (cut 



edge) 

 Xii>hoid cartilage 

 (depressed) 



Fig. 275. — Diaphragm of Horse; Abdominal Surface. 

 1, Ventral longitudinal ligament; 2, 2', tendons of crura; 3, lumbar sympathetic trunks; 4. errternal spermatic 

 nerve; o, 5, great splanchnic nerves; 6, cisterna chyli (opened); 7, 7, oesophageal continuations of vagus nerves; 

 8, lymph-gland; 9, coronary^ ligament of liver (cut) ; 10, right lateral ligament of liver (cut) ; 11, left lateral ligament of 

 liver (cut); 12, falciform ligament of liver (cut); A.I., lumbo-costal arch; N.i., intercostal nerve; C.d., right crus; 

 C.S., left crus: A, aorta; Ca, cceliac artery; Oe., oesophagus; V.c, posterior vena cava; V.p., phrenic veins. (After 

 Schmaltz, Atlas d. Anat. d. Pferdes.) 



which blends with the ventral longitudinal ligament. The tendon is succeeded by 

 a rounded belly which leaves the vertebral column at the last thoracic vertebra. 



' It is interesting to note that when a nineteenth rib is present (even when it is well developed) 

 the diaphragm has no connection with it, but ends on the eighteenth rib at a point a little more 

 ventral than usual. 



