218 DETAILED SYNTHESIS. 



330. THE LATERAL OB TRANSVERSE PROCESSES are 

 short portions of bone that extend from each side of the 

 back part of the arches of the vertebrae, for the attach- 

 ment of ligaments, tendons, and especially in the dorsal 

 region for the attachment of the ribs. (Fig. 7, PI. 16.) 



331. THE SACRUM, so called because by some of the 

 ancients considered sacred and offered in sacrifices, is a 

 part of the spinal column in one sense, and in another 

 is a part upon which the spinal column may be said to 

 rest. 



332. THE SACRUM is COMPOSED of five vertebrae, 

 consolidated into one triangular bone, wedged both 

 downward and backward between the hip-bones. (See 

 Fig. 2, PL 14.) 



333. THE SURFACE OF THE SACRUM is very even, 

 presenting a gentle curve on the inside, and very uneven 

 and irregular on the backside, affording attachment to 

 numerous ligaments and tendons. 



334. THE CENTRE OF THE SACRUM is OCCUPIED by 

 the lower portion of the spinal cord, and has several 

 pairs of holes in its front and back surfaces for the posi- 

 tion of nerves. 



335. THE SACRUM is FASTENED TO AND SEPARATED 

 FROM THE LOWEST LUMBAR VERTEBRAE by a decidedly 

 wedge-shaped intervertebral substance, which makes 

 the twenty-third in the spinal column. 



336. THE COXCYX is in one sense the termination 

 of the Sacrum, being composed of four small bones, 

 sometimes ossified into one with the Sacrum, but usually 

 having one or more limited joints. (See Fig. 1,2, PL 13.) 



337. THE LIGAMENTS OF THE SPINAL COLUMN are few. 

 There are twenty-four pairs of yellow, sinewy, and of 

 course elastic ligaments extending between the upper 

 and lower edges of the back part of the arches of the 

 vertebrae. A broad ligament extends from the skull 



880. What ire ? 881. What is ? 832. How is ? 838. What said of ? 

 834. How -? 885. How ? 386. What - ? 337. What said ? 



