426 



DIGESTIVE SYSTEM OF THE HORSE 



Fig. 365. — Topography of Viscera of Horse; Right View. 

 IR., First thoracic vertebra; IL., first lumbar vertebra; £K., second aacral spine; S., scapula; A., humerus; 

 St., sternum; B., ilium; 0., femur; L., right lung; H., pericardium; Z., diaphragm (pars costalis) ; r.v.C, right ven- 

 tral colon; V.Q., sternal flexure of colon; rf.Q., diaphragmatic flexure of colon; (?., body, C, base, C"., apex, of caecum; 

 £)., small intestine; F., pelvic flexure of colon; M., rectum; a., abdominal wall in section; 6. duodenum; c, coccygeus 

 muscle; d, retractor ani; e, e, sphincter ani externus; /, anterior gluteal artery; g, internal pudic artery; h, xiphoid 

 cartilage. The origin of the colon would be above the blind end of the base of the csecum marked C. (After EUeu- 

 berger, in Leisering's Atlas.) 



_^^\ 



Fig. 366. — Topography of Viscera of Horse; Right Side, Deeper View. 

 I.R., First thoracic vertebra; I.L., first lumbar vertebra; 2.K., second sacral spine; S., scapula; A., humerus; 



B, ilium; O., femur; Sch., pubis; Si., ischium; St., sternum; L., right lobe of liver; r.N., right kidney; C, body, 



C, base, C"., apex of c£ecum; r.v.C, right ventral colon; v.Q., sternal flexure of colon; d.Q., diaphragmatic flexure of 

 colon; r.d.C, right dorsal colon; F., pelvic flexure of colon; D., small intestine; H., urinary bladder; M., rectum; 

 a, left ventricle; .a', right ventricle; b, b', right coronary artery; c, left atrium; c', right atrium; d, left coronary artery, 

 circumflex branch; e, vena azygos; /, anterior vena cava; g, posterior vena cava; h, sinus venosus; i, right phrenic 

 nerve; fc, right vagus, with its dorsal (^0 and ventral (A:") divisions; ^, aorta; m, cesophagus; 7i, trachea; o, diaphragm 

 (median section) ; p, right lateral ligament of liver; q, duodenum; r, dotted line indicating position in median section 

 of diaphragm in inspiratory phase; s, recto-coccygeus muscle; t, suspensorj' ligament of rectum; u, sphincter ani; v, 

 vesicula seminalis; w, prostate; x, bulbo-urethral gland; y, urethra; z, abdominal wall; z', xiphoid cartilage. (After 

 Ellenberger, in Leisering's Atla^, reduced.) 



