ANATOMY. 13 
vertical, The sacrum is somewhat quadrangular; is 
composed of three bones which are consolidated at an 
early age. Only three vertebral foramina. 
The bones of the coccyx are strong and tuberous, 
the first five or six being as Mey as the true 
vertebral bones. 
The pelvis of the Hog (Pig) resembles that of the 
Sheep. The iliac crest is convex. The pubis is 
narrow, and the ischium has a tuberous prominence. 
The sacrum is composed of four vertebra, which do 
not become entirely consolidated for a length of time. 
Fic. 4. 
LATERAL LIGAMENTS OF THE SACRUM AND PELVIS. 
a, Superior Sacro-iliac Ligament; 4, Sacral Ligament; ¢, Lateral Sacro-iliac 
Ligament; d, Sacro-sciatic Ligament; e, Small Sciatic Notch; /, Great 
Sciatic Notch. 
The spinous processes are absent. The spinal canal is 
open above, due to the neural arch being deficient on 
each side. 
THE PELVIC ARTICULATIONS. 
Five in number: sacro-lumbar, two sacro-iliac, the 
ischio-pubic symphysis, the sacro-coccygeal articulations 
and the ilio-sacral and sacro-sciatic ligaments. 
