BONES OF THE PELVIC LIMB 181 
by a ridge, which is continuous with the superior ischiatic spine behind. The 
pelvic surface presents an extensive rough area behind, which is in apposition with 
the wing of the sacrum. The smooth iliac area is narrow, and is bounded above 
by a ridge. ‘The crest is convex, and is thick, rough, and prominent in its middle, 
which forms the highest point of the bone. The tuber sacrale is lower than the 
crest, is directed backward, and articulates internally with the sacrum. The tuber 
coxe is lower still and is very little thickened. The ischia in the female are some- 
what divergent and flattened behind. The tubera are everted and bear three prom- 
inences. There is a crest or tuberosity on the ventral surface. The superior 
ischiatic spine is like that of the cow, but is slightly incurved and the muscular 
Trochan- 
teric Trochanter 
Trochanter / major 
Head fossa 
Neck 
Neck Trochan- 
teric ridge 
Trochanter 
minor 
Lateral 
border 
Medial Lateral 
supracon- supracon- 
dyloid crest dyloid crest 
Medial Lateral 
Lateral Medial epicondyle epicondyle : 
epicondyle epicondyle 
Inter- 
Lateral Trochlea Nedial Medial condyle condyloid Lateral condyle 
condyle condyle fossa 
Fic. 193.—Ricur Femur or Pic; ANTERIOR VIEW. Fic. 194.—Ricutr Femur or Pic; Posterior View. 
ridges on its lateral face are more pronounced. The symphyseal part of the pubis 
is thick and the two bones are almost in a horizontal plane. The ilio-pectineal 
eminence is prominent and the psoas tubercle is well marked. 
The acetabulum is placed a little further back than in the ox. The rim is 
thick and is cut into posteriorly by a narrow fissure, which leads into the deep fossa 
acetabuli. The three pieces of the os cox are fused by the end of the first year, 
but the crest and the tuber ischii are partially separate till the sixth or seventh year. 
The symphysis does not usually undergo complete ankylosis. Interischial bones 
are present. 
The inlet of the pelvis is elliptical and very oblique. In a sow of full size the 
conjugate diameter measures five to six inches (12.5-15 cm.), and the transverse 
