Bones of the Upper Body Form
the Thorax and Arms
LEARNING OBJECTIVES
1.
Identify
the bones of the thorax.
2.
Name
the bones of the shoulder.
3.
Describe
the bones of the arm.
n this section you will learn about the bones
of the thorax, which are part of the axial skel-
eton, and those of the arms, which along with
the hips, legs, and feet form the appendicular
skeleton (see Figure 5.7). The thorax consists of the
ster-
num
and 12 pairs of
ribs
(
Figure 5.11a
).
InSight
T h e u p p e r b o d y
Figure 5.11
The upper body includes the bones of the tho-
rax, shoulders, arms, forearms, and hands.
Clavicle
Coracoid process
Glenoid cavity
Scapula
Humerus
\C 7 ,
'»T1_t-
STERNUM
Manubrium
Body
)
r j k
i
^
b. Anterior view of pectoral girdle
\ « ù r
c.
Posterior view of pectoral girdle
Costal
cartilage
Scapula
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