162 SKELETON OF THE PIG 
third to the last; the anterior ones are inclined backward, the posterior ones for- 
ward. The last cervical is recognized by the great length of its spme (ca. 10 cm. 
in the adult), the absence of the ventral plate of the transverse process, and the flat- 
ness of the body, which bears a pair of small facets on its posterior margin for the 
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Fic. 164.—Fourta Crrvicau Fic. 165.—Sixrx CrervicaL VERTEBRA Fic. 166.—SrventH Ceryican 
VerTesra oF Pia; Lat or Pic; ANTERIOR VIEW. VeRTEBRA OF P1iG; LATERAL 
BRAL View. 1, Body; 2, transverse process; View. 
1, 1’, Anterior and pos- 3, foramen transversarium; 4, addi- 1, 1’, Anterior and posterior 
terior ends of body; 2, 
3, foramen of arch; 4, anterior 
arch; ends of body; 2, facet for head of 
first rib; 3, 
tional foramen of arch; 5, articular proc- 
ess; 6, arch; 7, spinous process. arch; 4, transverse 
articular process; 5, spinous 
6, ventral branch of 
process; 5, 5’, articular processes; 
1 (number on 
bone), foramina of arch. 
process; 
transverse process. 
6, spinous process; 
ic: 
2 
1 
at 
¢Y- 
4 5 6 
if 5 4 
Fic. 167.—Arxas or Pia; DorsaL VIEW. 
Fig. 168.—AtTias or Pig; ANTERIOR VIEW. 
1, Dorsal tuberosity; 2, 
4, intervertebral foramen; 5, 
tubercle; 7, surface for dens. 
heads of the first ribs. 
each side of the arch. 
The dorsal tuberosity of the atlas is large. 
pressed laterally, and projects back under the axis. 
bears a posterior tuberosity. 
1, Dorsal tuberosity; 2, wing; 3, alar foramen; 4, ante 
rior articular cavity; 5, ventral tubercle. 
alar foramen; 3, wing; 
dorsal arch; 6, ventral 
It has foramina transversaria, and usually two foramina in 
The ventral tubercle is long, com- 
The wing is flattened and 
The foramen transversarium passes through the 
