THE 
VETERINARIAN. 
VOL. II. 
MAY, 1829. 
No. 17. 
ANATOMY OF THE HORSE. 
[Continued from page 126.] 
Articulations of the pelvis. —The sacro-vertehrol arti¬ 
culation, formed between the last lumbar vertebra and the base 
of the sacrum, consists—1st, of an inter-vertebral substance 
in the middle, similar to what exists in the spine ; 2dly, of two 
superior transverse ligaments, affixed to the transverse processes ; 
and, 3dly, of two inferior transverse ligaments, which run from 
the fourth and fifth transverse processes of the loins to the crista 
of the ileum. — The sacro-iliac articulations are formed by the in¬ 
terposition of fibro-cartilaginous substances between the trans¬ 
verse processes of the sacrum and the venters of the ileum, resting 
upon them; and is strengthened by ligamentary bands passing 
from the posterior spines and borders of the ileum to the trans¬ 
verse processes of the sacrum.— The sacro-sciatic ligaments are 
broad expansions stretched across the sacro-sciatic notch. They 
are fixed to the transverse processes of the sacrum and those of 
the two or three anteriormost bones of the coccyx, and to the pos¬ 
terior parts of the ileum and ischium, and also to the tuberosity of 
the latter bone. Towards the anterior part of the notch, the liga¬ 
ment exhibits an oval opening, through which pass the sciatic 
blood-vessels and nerves.— The obturator ligament is the fibro- 
membranous expansion stretched like a drum-head across the ob¬ 
turator foramen : through its anterior part is a hole for the trans¬ 
mission of the obturator artery and vein.— The symphysis pubis 
is formed by the junction of the two ossa innominata, by means 
of a fibro-cartilaginous substance adherent to the opposing sur¬ 
faces.— The sacro-coccygeal articulation , formed between the 
sacrum and coccyx, is the same as a common vertebral joint. 
Vol. IE—No. 17. y 
