6. The scapula is a flat bone which is situated on the cranial
part of the lateral wall of the thorax; its long axis extends
obliquely from the forth thoracic spine to the ventral end
of the first rib.
borders
3
surfaces,
2
It’s triangular in outline and has
.
angles
3
and
by the
two fossae
is divided into
The lateral surface
dorsal
which extends from the
spine of the scapula
border to the neck of the bone.
The free edge of the spine is thick, rough. A little dorsal
to its middle there is a variable prominence, the
.
tuberosity of the spine
7.
8. is situated cranial to the spine
fossa
supraspinous
The
infraspinous
caudally. The
fossa
infraspinous
and the
fossa is wide and smooth in its dorsal part, narrower
several rough lines for
ventrally, where it is marked by
nutrient
, near the neck is the
muscular attachment
a vascular groove.
and a little more ventral is
foramen
is hollowed in its length by the
The costal surface
, dorsally it’s pointed and separates
subscapular fossa
.
serrata
facies
two rough triangular areas
is convex and rough dorsally, concave
The cranial border
and smooth ventrally.
9.
10. is slightly concave, it is thick and
The caudal border
rough in its dorsal third, thin in its middle and thickens
again ventrally.
carries the scapular cartilage.
dorsal border
The
is at the junction of the cranial and
cranial angle
The
dorsal borders; its relatively thin.
is thick and rough.
caudal angle
The
11.
12. is joined to the body of the
angle
glenoid
The ventral or
glenoid
, it bears the
neck of the scapula
bone by the
.
humerus
for articulation with the head of the
cavity
The cavity is oval in outline with its margin cut into
.
notch
glenoid
cranially by the
is the large, rough prominence,
tubercle
glenoid
supra
The
coracoid
projecting from its medial side is the small
process.
