227
CHAPTER SEVEN
Skeletal System
Sternum
Costal
cartilage
Rib
Scapula
Humerus
Humerus
Ulna
Radius
Clavicle
Rib
(a)
(b)
Sternal end
Coracoid
process
Head of
humerus
Acromion
process
Acromial end
Coracoid
process
Head of
humerus
Acromion
process
FIGURE 7.40
The pectoral girdle (
a
), to which the upper limbs
are attached, consists of a clavicle and a scapula on each side.
(
b
) Radiograph of the right shoulder region, anterior view.
Acromion
process
Coracoid
process
Spine
Glenoid
cavity
Suprascapular
notch
Superior
border
Supra-
glenoid
tubercle
Infra-
glenoid
tubercle
Coracoid
process
Acromion
process
Supraspinous
fossa
Infraspinous
fossa
Glenoid
cavity
Lateral
(axillary) border
Subscapular
fossa
Medial
(vertebral)
border
(a)
(b)
(c)
FIGURE 7.41
Right scapula. (
a
) Posterior surface. (
b
) Lateral view showing the glenoid cavity that articulates with the head of the humerus.
(
c
) Anterior surface.
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