MUSCLES OF 
ear. 
with the levator scapule ven- 
tralis (Fig. 72, cc’). Medial 
surface with the carotid artery, 
the trachea, cesophagus, and 
pharynx. Dorsal edge with 
the vertebrze, the longus colli 
(Fig. 72, g’), and the rectus ca- 
pitis anterior minor (Fig. 72,0). 
Action.—Lowers the snout. 
M. rectus capitis anterior 
minor (Fig. 72, 6).—This is a 
flat band beneath (dorsad of) 
the longus capitis (a). 
Origin from the ventral sur- 
face of the inferior arch (body) 
of the atlas (3) for about five 
millimeters laterad of the mid- 
dle line. 
Insertion into a deep depres- 
sion on the basioccipital caudad 
of the insertion of the longus 
capitis (2) and between the 
caudal end of the bulla (1) and 
the median line. 
Relations.—Ventral surface 
with the longus capitis (qa). 
Dorsal surface with the anterior 
(ventral) atlanto-occipital mem- 
brane (2). 
Action. — Depresses 
snout. 
M. rectus capitis lateralis 
(Fig. 72, @).—This lies ventrad 
of the obliquus superior (¢) on 
the ventral face of the transverse 
process of the atlas and at first 
the 
THE BODY. 143 
Lateral surface with the scalenus (Fig.72, #) and craniad 
Fic. 72,—MuSCLES ON THE VENTRAL 
SURFACE OF THE CERVICAL VER- 
TEBRA. 
On the left side the longus capitis and 
one head of the levator scapulz ventralis 
have been cut, in order to show the rec- 
tus capitis anterior minor. @, M. longus 
capitis; 4, M. rectus capitis anterior 
minor; ¢, M. levator scapulz ventralis 
(c', its atlantal head; -”, its occipital 
head); @, M. rectus capitis lateralis; ¢, 
M. obliquus capitis superior; 7, M. longis- 
simus capitis; g, M. longus colli (g’, its 
cervical portion; g”, its thoracic por- 
tion); 4, part of M. scalenus. 1, bulla 
tympani; 2, ventral atlanto-occipital 
membrane; 3, ventral arch of atlas; 4, 
first rib. 
appears to be a part of the obliquus superior. 
