THE SCAPULA. 181 
The glenoid surface is a pyriform articular area, slightly concave from above down- 
wards and from side to side; its border is but slightly raised above the general surface 
and affords attachment in the recent condition to the glenoid ligament, which helps 
to deepen the socket in which the head of the humerus rests. Below, this edge 
is confluent with the infraglenoid impression (tuberositas infraglenoidalis), whilst 
above it blends with a tubercle (tuberositas supraglenoidalis), to which the long head 
CLAVICULAR FACET 
SUPERIOR ANGLE 
Omo-hyoid 
SUPRASCAPULAR 
— NOTCH 
ACROMION 
SUPRASPINOUS FOSSA — 
Supraspinatus Td 
Levator anguli scapulee — 
SPINE 
Rhomboideus minor NECK 
mm KS % 5 
Bers ve 
Trapeziu ae GREAT SCAPULAR NOTCH 
‘ Triceps 
" “ARTERIAL FORAMEN 
\ 
VERTEBRAL BORDER \ 
iy GROOVE FOR DORSAL ARTERY OF SCAPULA 
\ 
_—Teres minor 
LNFRASPINOUS FOSSA _ 
§ —— AXILLARY BORDER 
Infraspinatus 
Rhomboideus major ——~ — 
~—~Teres iajor 
Latissimus dorsi 
INFERIOR ANGLE 
Fic. 125.—THe RIGHT SCAPULA AS SEEN FROM BEHIND. 
of the biceps muscle is attached. Springing from the upper part of the head, in 
line with the superior border, is the coracoid process (processus coracoideus). The 
base of this is limited externally by the glenoid edge, whilst internally it is separ- 
-ated from the superior border by the suprascapular notch. Rising upwards for : 
short space, it bends on itself at nearly a right angle, and ends in a process which 
is directed outwards and slightly forwards, overhanging the glenoid fossa above 
and in front. Compressed from above downwards, it has attached to its upper 
surface near its angle the conoid ligament, wide of which there is a rough area 
for the trapezoid ligament. Attached to its posterior border is the coraco-acromial 
ligament, whilst at its extremity and towards the front part of its anterior border, 
is the combined origin of the biceps and coraco-brachialis, together with the insertion 
of the pectoralis minor. The neck (collum scapule) is that somewhat constricted 
part of the bone which supports the head; it corresponds in front and behind to a 
line drawn from the suprascapular notch to the infraglenoid tubercle. 
The body of the bone has two surfaces, a dorsal (facies dorsalis) and a ventral 
(facies costalis). The former is divided into two fossee by an outstanding process 
of triangular form, called the spine (spina scapule). The attached border of this 
) 
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