FISTULA. 
519 
withers and cervical base, attached above to the funicular 
ligament and transverse processes of the anterior dorsal ver¬ 
tebras, and below by its apical aponeurosis to the acromion, 
spine and scapular aponeurosis. This muscle is covered by 
two aponeurotic plates, whose fibres run in opposite direc¬ 
tions, and it, in turn, covers portions of the rhomboideus, 
splenius, angularis, supra and infraspinatus. Its blood comes 
mainly from the dorsal artery, and its nerve force from the 
spinal accessory. Fibres of the cervical portion run down¬ 
ward and backward. 
The rhomboideus has the form of a long triangle-apex 
forward. It is covered by the cervical trapezius, scapular 
cartilage, and aponeurosis of the great dorsal. It covers the 
postero-superior, excavated portion of the splenius, whose 
fibres it crosses at an acute angle, in running backward and 
slightly downward. Its origin is on the posterior two-thirds 
of the cervical ligament and by fasciculi to the superior spin¬ 
ous processes of the second, third, fourth and fifth dorsal ver¬ 
tebrae. Its insertion is by the lower extremity to superior 
and internal surface of scapular cartilage. Its blood supply 
is from the dorsal and superior cervical; nerve supply is sixth 
cervical and muscular branch of the brachial plexus. The 
anterior fibres run nearly backward and the posterior down¬ 
ward. 
Levator anguli scapula. —Short, powerful, triangular. Thick 
posterior and inferior borders, thin above, and placed just in 
front of scapula. Its origin is on the transverse processes of 
third, fourth, fifth, sixth and seventh cervical vertebras by 
five fasciculi, whose fibres converge to a common tendon 
which inserts on the anterior triangular surface, internal face 
of scapula. Externally, in relation with cervical trapezius, 
mastoido-humeralis and the small pectoral, and internally with 
the splenius, ilio-spinalis and common intercostal. Its fibres 
all run downward and forward. Blood supply, dorsal and 
superior cervical; nerves, sixth cervical and muscular branch 
of the brachial plexus. 
The splenius is one of the larger muscles of this region. 
Flattened, triangular, bounded above by the cervical cord, 
