260 VETERINAET STATE BOARD 



State the difference between the pelvis of the sheep and that of the cow. 

 Diiferenee is mainly in size. The coxae of the sheep are more 

 horizontal and proportionately longer than in the ox. 



Give approximately the supero-inferior and the transverse diameters 

 of the bony pelvis of the cow. 



Inlet. Outlet. 



Supero-inferior 8 to 10 inches. 9 inctes. 



Transverse 7 inches. 7 inches. 



Name the different articulations of the pelvis. 



One sacrolumbar, two sacro-iliac, one ischiopubie symphysis, 

 and one sacrococcygeal. 



Name the ligaments connecting the last lumbar vertebrae with the 

 sacrum and the pelvis. 

 Common inferior vertebral, supradorsolumbar, interspinous, 

 interlamellar, and capsular. 



Describe (a) the iliosacral ligaments, (b) the sacrosciatic ligament. 



(a) The superior iliosacral ligament is a thick and short cord 

 which arises from the internal angle of the ileum and passes back- 

 ward to be fixed to the sacral spine where it becomes confounded 

 with the supraspinous, dorsolumbar ligament. The inferior ilio- 

 sacral ligament is attached by its anterior margin to the upper half 

 of the sciatic border and the internal angle of the ileum. Its inferior 

 margin is inserted into the rugged lip on the lateral border of the 

 sacrum. Its posterior border is united to the aponeurosis covering 

 the coccygeal muscles, and its external face is in contact with the 

 gluteus magnus and long vastus muscles. The internal face lies 

 against the lateral sacrococcygeal muscle. 



(b) This is a large membranous ligament situated on the side 

 of the pelvis between the sacrum and the coxa. It is irregularly 

 quadrilateral, having four borders. The superior border is attached 

 to the lateral rugged lateral ridge of the sacrum; the inferior is 

 fixed to the supracotyloid ridge and ischial tuberosity ; the anterior 

 aids in forming the great sciatic notch, and the posterior is con- 

 founded with the coccygeal aponeurosis. Its internal face is covered 

 with peritoneum. This ligament affords a large area for muscular 

 insertion as well as serving a means for enclosing the pelvic cavity. 



Where is the ischial notch? What vessels and nerves pass through it? 



The ischial notch lies between and is formed by the postero- 

 internal borders of the two ischii as they join at the symphysis. 

 The artery of the bulb in the male, the perineal artery and the 



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